Allergy Related Diseases & Conditions

Medical conditions are often related to other diseases and conditions. Our doctors have compiled a list of ailments related to the topic of Allergy. These conditions may be a cause or symptom of Allergy or be a condition for which you may be at increased risk.

  • Bedbugs Bed bugs (from the insect family Cimicidae) are small, reddish-brown tick-like insects that feed by sucking the blood of mammals....learn more »
  • Rash The word "rash" means an outbreak of red bumps on the body. The way people use this term, "a rash" can refer to many different...learn more »
    In This Article
    Rash Article
    • Rash facts
    • What are the causes, symptoms, and signs of common noninfectious rashes?
    • How are common skin rashes diagnosed?
    • Scaly patches of skin produced by fungal or bacterial infection
    • What is the treatment for a rash?
  • Vitamin D Deficiency Vitamin D deficiency has been linked with rickets, cancer, cardiovascular disease, severe asthma in children and cognitive...learn more »
  • Sinus Infection (Sinusitis) Sinus infection (sinusitis) signs and symptoms include headache, fever, and facial tenderness, pressure, or pain. Treatments of...learn more »
  • Hives Hives, also called urticaria, is a raised, itchy area of skin that is usually a sign of an allergic reaction. The allergy may be...learn more »
    In This Article
    Hives Article
    • Hives facts
    • What are hives (urticaria) and angioedema?
    • What causes hives and angioedema?
    • What are the different kinds of hives?
    • What are the symptoms and signs of ordinary urticaria (ordinary hives)?
    • What are the causes of ordinary hives?
    • What are the causes of chronic hives?
    • Are there other conditions that mimic hives?
    • What is the treatment for hives?
    • What is the prognosis of hives?
  • Mold Mold exposure may cause symptoms in people who are sensitive to molds. Symptoms of mold allergy include sneezing, runny nose,...learn more »
    In This Article
    Mold Article
    • Mold facts
    • What is mold?
    • Where can mold be found in homes?
    • What kinds of health problems may be linked to mold? What are symptoms and signs of mold allergy?
    • How can mold in the household be prevented?
    • Is it necessary to test for mold?
    • How should mold be cleaned up and eliminated?
  • Itching Itching can be a common problem. Itches can be localized or generalized. There are many causes of itching to include: infection...learn more »
    In This Article
    Itching Article
    • Itch facts
    • What is an itch?
    • What are associated symptoms and signs of itching?
    • What causes itching?
    • How is the cause of itching diagnosed?
    • Should I scratch the itch?
    • What are topical itch treatments? Are there any home remedies for itching?
    • What are oral itch treatments?
    • Can itching be prevented?
    • When should the doctor be consulted for itching?
    • What are possible complications of itching?
    • What is the prognosis (outlook) for itching?
  • Bronchitis (Acute) Bronchitis is inflammation of the airways in the lung. Acute bronchitis is is short in duration (10 to 20 days) in comparison...learn more »
  • Pink Eye Pink eye, also called conjunctivitis, is redness or irritation of the conjunctivae, the membranes on the inner part of the...learn more »
  • Poison Ivy Poison ivy, oak, and sumac are plants that cause an itchy skin rash and skin inflamation when contacted directly. This poison can...learn more »
    In This Article
    Poison Ivy Article
    • Poison ivy, oak, and sumac facts
    • What causes the rash? How do I identify poison ivy, oak, and sumac?
    • What are the signs and symptoms of the poison ivy rash?
    • Is a rash from poison ivy, oak, and sumac dermatitis contagious?
    • What are risk factors for poison ivy, oak, and sumac dermatitis?
    • How is the dermatitis of poison ivy, oak, and sumac diagnosed?
    • What is the treatment for poison ivy, oak, and sumac dermatitis?
    • What are complications for poison ivy, oak, and sumac dermatitis?
    • What is the prognosis (outlook) for poison ivy, oak, and sumac dermatitis?
    • How can contact with poison ivy, oak, and sumac be prevented?
    • What should people do if they are exposed to a poisonous plant?
  • Sinus Headache Sinus headache is caused by a sinus infection or inflammation of the sinus cavities. The primary symptom of a sinus infection is...learn more »
    In This Article
    Sinus Headache Article
    • Sinus headache facts
    • What are the sinuses?
    • What is a sinus headache?
    • What causes a sinus headache?
    • What are the symptoms of a sinus headache?
    • When should I seek medical care for a sinus headache?
    • How is a sinus headache diagnosed?
    • What is the treatment for a sinus headache? Do home remedies work?
    • What are the complications of a sinus headache?
    • Can a sinus headache be prevented?
    • What is the prognosis for a sinus headache?
  • Hay Fever Hay fever (allergic rhinitis) is an irritation of the nose caused by pollen and is associated with the following allergic...learn more »
    In This Article
    Hay Fever Article
    • Hay fever facts
    • What is hay fever? What are the symptoms and signs?
    • Why does an allergic reaction occur?
    • What causes allergic rhinitis?
    • When and where does allergic rhinitis occur?
    • How is allergic rhinitis diagnosed, and how are allergies identified?
    • How are allergies treated?
  • Bee and Wasp Sting Bees, wasps, and fire ants are related insects that belong to the Hymenoptera order. There are thousands of species of wasps...learn more »
    In This Article
    Bee and Wasp Sting Article
    • Bee and wasp sting facts
    • Insect stings overview
    • What are the types of wasps?
    • What are the types of bees?
    • What are causes of bee and wasp stings?
    • What are the symptoms of a bee or wasp sting?
    • When should I call a doctor about a bee or wasp sting?
    • How is a bee or wasp sting diagnosed?
    • What is the treatment for a bee or wasp sting?
    • What are the complications of a bee or wasp sting?
    • How can I prevent a bee or wasp sting?
  • Chronic Rhinitis and Post-Nasal Drip Allergic rhinitis symptoms include an itchy, runny nose, sneezing, itchy ears, eyes, and throat. Seasonal allergic rhinitis (also...learn more »
    In This Article
    Chronic Rhinitis and Post-Nasal Drip Article
    • Chronic rhinitis and post-nasal drip facts
    • What is the purpose of the nose?
    • What are rhinitis and post-nasal drip?
    • What causes rhinitis?
    • Is rhinitis always related to allergies?
    • What conditions cause an abnormal production of nasal secretions?
    • What conditions cause an impaired clearance of nasal secretions?
    • How can chronic rhinitis and post-nasal drip be treated?
    • What medications can be used to treat rhinitis and post-nasal drip?
    • What can be used to treat non-allergic rhinitis?
    • Does salt water have any role in the treatment of rhinitis and post-nasal drip?
    • What are other options for the treatment of rhinitis and post-nasal drip?
    • Terminology
  • Hoarseness Hoarseness (abnormal deep, harsh, raspy voice) is caused by a variety of conditions in which the larynx (voice box and vocal...learn more »
    In This Article
    Hoarseness Article
    • Hoarseness facts
    • What is hoarseness?
    • What causes hoarseness?
    • What are the signs and symptoms of hoarseness?
    • How are the causes of hoarseness diagnosed?
    • What is the treatment for hoarseness?
    • How is hoarseness prevented?
  • Atopic Dermatitis Eczema is a general term for many types dermatitis (skin inflammation). Atopic dermatitis is the most common of the many types of...learn more »
    In This Article
    Atopic Dermatitis Article
    • Atopic dermatitis facts
    • What is atopic dermatitis?
    • What is the difference between atopic dermatitis and eczema?
    • How common is atopic dermatitis?
    • What causes atopic dermatitis?
    • Is atopic dermatitis contagious?
    • What are atopic dermatitis symptoms and signs?
    • Can atopic dermatitis affect the face?
    • What are the stages of atopic dermatitis?
    • How do physicians diagnose atopic dermatitis?
    • What factors can aggravate atopic dermatitis?
    • What are skin irritants in patients with atopic dermatitis?
    • What are allergens?
    • What are aeroallergens?
    • What is the treatment for atopic dermatitis?
    • What is the prognosis of atopic dermatitis?
  • Blepharitis Blepharitis is inflammation of the eyelids. Acne rosacea, Staphylococcal bacteria, allergies, sensitivities to makeup or contact...learn more »
    In This Article
    Blepharitis Article
    • Blepharitis facts
    • What is blepharitis?
    • What causes blepharitis?
    • What are the symptoms and signs of blepharitis?
    • How is blepharitis diagnosed?
    • What are complications of blepharitis?
    • What is the treatment for blepharitis?
    • What is the prognosis for blepharitis?
  • Eosinophilic Esophagitis Eosinophilic esophagitis is an inflammation of the esophagus. Eosinophilic esophagitis has many causes including acid reflux,...learn more »
    In This Article
    Eosinophilic Esophagitis Article
    • Eosinophilic esophagitis facts
    • What is and what causes eosinophilic esophagitis?
    • What are the symptoms of eosinophilic esophagitis?
    • How does eosinophilic esophagitis cause dysphagia?
    • What are the other causes of dysphagia or solid food?
    • How is eosinophilic esophagitis diagnosed?
    • How is eosinophilic esophagitis treated?
    • What about elimination diets for treating eosinophilic esophagitis?
    • What is the future of eosinophilic esophagitis?
  • Eye Allergy Eye allergy (or allergic eye disease) are typically associated with hay fever and atopic dermatitis. Medications and cosmetics...learn more »
    In This Article
    Eye Allergy Article
    • Eye allergy facts
    • Eye allergy introduction
    • What causes eye allergies?
    • What is the basic anatomy of the outer eye?
    • Why are the eyes an easy target for allergies?
    • What are symptoms and signs of eye allergies?
    • What are allergic eye conditions?
    • What are eyelid allergies (also called contact eye allergies)?
    • What conditions can be confused with eye allergies?
    • What is the treatment for eye allergies?
    • What is the prognosis of eye allergies?
    • Can eye allergies be prevented?
  • Dry Skin Dry skin (xeroderma) may be caused by external factors, like cold temperatures, low humidity, harsh soaps, and certain...learn more »
    In This Article
    Dry Skin Article
    • Dry skin facts
    • What is dry skin?
    • What causes dry skin?
    • What are signs and symptoms of dry skin?
    • How is dry skin diagnosed?
    • Does dry skin cause winter itch?
    • Do genetics play a role in dry skin?
    • What medical conditions cause dry skin?
    • Do any medications cause dry skin?
    • What is the treatment for dry skin?
    • What are possible complications of dry skin?
    • What are some home remedies for dry skin?
    • How can dry skin be prevented?
    • What are the best products for dry skin?
  • Burning Mouth Syndrome Burning mouth syndrome (BMS) is a condition that causes pain in the mouth. BMS may be caused by menopause, dry mouth or...learn more »
    In This Article
    Burning Mouth Syndrome Article
    • Burning mouth syndrome facts*
    • Burning mouth syndrome introduction
    • What are signs and symptoms of burning mouth syndrome?
    • What are causes of burning mouth syndrome?
    • How is burning mouth syndrome diagnosed?
    • What is the treatment for burning mouth syndrome?
    • What are helpful tips for dealing with burning mouth syndrome?
  • Bad Breath Bad breath can result from poor oral hygien habits and may be a sign of other health problems. Bad breath, also called halitosis,...learn more »
    In This Article
    Bad Breath Article
    • Bad breath facts
    • What is the definition of bad breath?
    • What are the causes of bad breath?
    • What are the symptoms of bad breath?
    • How is bad breath treated? What can be done to prevent bad breath?
    • What products can be used to eliminate or mask bad breath?
    • When should someone see a doctor about bad breath?
  • Colic in Babies Colic is crying or fussing that begins suddenly, lasting for a total of three hours a day and happening more than three days a...learn more »
    In This Article
    Colic in Babies Article
    • Colic facts
    • What is colic?
    • What are colic symptoms and signs in babies?
    • What can be done to help with colic in babies?
    • What can the doctor do to help a colicky baby? What is the treatment for colic in an infant?
  • Cold, Flu, Allergy Treatments Before treating a cold, the flu, or allergies with over-the-counter (OTC) medications, it's important to know what's causing the...learn more »
    In This Article
    Cold, Flu, Allergy Treatments Article
    • Facts about cold, flu, and allergy treatments
    • Introduction to cold, flu, and allergy treatments
    • What are the differences between allergy, cold, and flu symptoms?
    • What are the different types of medications for headaches, body aches, fever, and flu-like symptoms?
    • Nasal congestion, sneezing, and runny nose
    • Cough
    • Sore throat and other symptoms
    • What about vitamin C and zinc?
    • What are some important considerations for the safe use of OTC products?
  • Food Allergy The most common food allergies are to eggs, nuts, milk, peanuts, fish, shellfish, strawberries and tomatoes. Symptoms and signs...learn more »
    In This Article
    Food Allergy Article
    • Food allergy facts
    • Introduction to food allergies
    • How do allergic reactions to food occur?
    • What are the symptoms and signs of food allergy?
    • Do infants and children have problems with food allergy?
    • What are the most common food allergies?
    • What is cross-reactivity?
    • What is oral allergy syndrome?
    • What is exercise-induced food allergy?
    • What conditions have mistakenly been attributed to food allergy?
    • What conditions mimic food allergy?
    • How is food allergy diagnosed?
    • What is the treatment for a food allergy?
    • Are allergy shots effective in preventing or decreasing food allergy?
  • Frozen Shoulder A frozen shoulder (adhesive capsulitis) is when the shoulder joint experiences a significant loss in its range of motion due to...learn more »
    In This Article
    Frozen Shoulder Article
    • Frozen shoulder facts
    • What is a frozen shoulder?
    • What causes a frozen shoulder?
    • What are symptoms and signs of a frozen shoulder?
    • How is a frozen shoulder diagnosed?
    • What conditions can mimic a frozen shoulder?
    • What is the treatment for a frozen shoulder?
    • What is the prognosis of a frozen shoulder?
    • Can a frozen shoulder be prevented?
  • Bug Bites and Stings Bug bites and stings have been known to transmit insect-borne illnesses such as West Nile virus, Rocky Mountain spotted fever,...learn more »
    In This Article
    Bug Bites and Stings Article
    • Bug bites and stings facts*
    • Bug bites and stings introduction
    • What can I do to keep insects away?
    • What's the proper way to use insect repellent?
    • What's the best way to remove a bee stinger?
    • What should I do if I find a tick on me or my child?
    • What can be done for itching and pain from bites and stings?
    • When is medical attention needed?
    • Where can I find more information on bug bites and stings?
  • Asthma: Over the Counter Treatment Patients who have infrequent, mild bouts of asthma attacks may use over-the-counter (OTC) medications to treat their asthma...learn more »
    In This Article
    Asthma: Over the Counter Treatment Article
    • What is asthma?
    • What medications are used to treat asthma?
    • How do over-the-counter (OTC) medicines for asthma work?
    • What factors should be considered in choosing and using OTC epinephrine or ephedrine?
    • What side effects and drug interactions are there with OTC asthma medicines?
    • What are additional measures in the management of asthma?
  • Genetic Disease Genetic disease is a disorder or condition caused by abnormalities in a person's genome. Types of genetic inheritance include...learn more »
    In This Article
    Genetic Disease Article
    • What is a genetic disease?
    • What are the different types of inheritance?
    • Single gene inheritance
    • Multifactorial inheritance
    • Chromosome abnormalities
    • Mitochondrial inheritance
    • What is the human genome?
  • Intertrigo Intertrigo is irritant dermatitis, usually found in skin folds, that is caused by rubbing, increased temperature, and moisture....learn more »
  • Poison Ivy Poison ivy, oak, and sumac contain a substance called urushiol, which causes a rash on people who come in contact with them....learn more »
    In This Article
    Poison Ivy Article
    • Poison ivy, oak, and sumac facts
    • What are poison ivy, poison oak, and poison sumac?
    • What causes a poison ivy, oak, or sumac rash?
    • What are risk factors for poison ivy, oak, or sumac rash?
    • What are symptoms and signs of a poison ivy, oak, or sumac rash?
    • How do physicians diagnose poison ivy, oak, and sumac rashes?
    • What is the treatment for a poison ivy, oak, or sumac rash?
    • Are there any home remedies for a poison ivy, oak, or sumac rash?
    • What is the prognosis of a poison ivy, oak, or sumac rash?
    • Is it possible to prevent a poison ivy, oak, or sumac rash?
  • Snoring Snoring, like all other sounds, is caused by vibrations that cause particles in the air to form sound waves. While we are asleep,...learn more »
    In This Article
    Snoring Article
    • Snoring facts
    • What is snoring?
    • How common is snoring?
    • What are the causes of snoring?
    • How do medications and alcohol affect snoring?
    • Why is snoring a problem?
    • What is the clinical importance of snoring?
    • What are different levels of snoring?
    • How should someone with snoring be evaluated?
    • How is it determined if snoring is a medical problem?
    • What are some objective tests to measure sleepiness?
    • What are the treatments for snoring?
    • What are some non-surgical treatments for snoring?
    • What are the surgical options for snoring?
    • What is the success of surgery for snoring?
  • Contact Dermatitis Contact dermatitis is a rash that occurs after exposure to an irritating substance. Symptoms include a red, elevated rash at the...learn more »
    In This Article
    Contact Dermatitis Article
    • Contact dermatitis facts
    • What is contact dermatitis?
    • What causes contact dermatitis?
    • What are risk factors for contact dermatitis?
    • What are contact dermatitis symptoms and signs?
    • How is contact dermatitis diagnosed?
    • What is the treatment for contact dermatitis?
    • What is the prognosis of contact dermatitis?
    • Can contact dermatitis be prevented?
  • Asthma in Children Asthma in children manifests with symptoms such as coughing and wheezing. Rates of asthma in children are increasing. Asthma in...learn more »
    In This Article
    Asthma in Children Article
    • What is asthma in children?
    • How common is asthma in children?
    • What are the signs and symptoms of asthma in children?
    • How is asthma in children diagnosed?
    • What is the treatment for asthma in children?
    • What is the prognosis for asthma in children?
    • Can asthma in children be prevented?
  • Breastfeeding and Formula Feeding It's important to know whether you will breastfeed or bottle-feed your baby prior to delivery, as the breasts' ability to produce...learn more »
    In This Article
    Breastfeeding and Formula Feeding Article
    • Breastfeeding facts
    • When should we decide about breastfeeding?
    • Why is the choice so important?
    • What are the advantages and disadvantages of breastfeeding?
    • What are the advantages and disadvantages of formula feeding?
    • Can we use both forms of feedings for our baby?
    • Is there any special preparation required for breastfeeding?
    • When can breastfeeding begin?
    • What is the proper technique for breastfeeding?
    • When should breast pumps be used?
    • Should certain foods be avoided while breastfeeding?
    • How can one manage minor discomforts related to breastfeeding?
    • Clogged milk ducts
    • Sore nipples
    • When should one seek medical care for problems with breastfeeding?
    • Can supplements or medications increase a low milk supply?
    • Is it possible to breastfeed while pregnant?
    • Is smoking harmful when breastfeeding?
    • Do breast implants, surgeries, or reductions affect breastfeeding?
    • How should one wean a baby from breastfeeding?
  • Eye Care Many common eye disorders resolve without treatment and some may be managed with over-the-counter (OTC) products. It's important...learn more »
    In This Article
    Eye Care Article
    • Eye care introduction
    • What is the structure of the eye?
    • Which common disorders of the eye can (sometimes) be self-treated?
    • What common eye conditions usually require treatment by a doctor?
    • What types of OTC eye care products are there?
    • What inactive ingredients are contained in OTC eye care products?
  • Insect Sting Allergies The majority of stinging insects in the United States are from Bees, Yellow Jackets, Hornets, Wasps and Fire Ants. Severity of...learn more »
    In This Article
    Insect Sting Allergies Article
    • Stinging insect allergy facts
    • What are stinging insects?
    • Who is at risk for insect sting allergies?
    • What types of insect sting reactions occur?
    • How is a severe allergic reaction immediately treated?
    • How can I avoid insect stings?
    • What can I do about becoming immune to insect allergy?
  • Children's Cough Causes and Treatments Children's cough causes include infection, acid reflux, asthma, allergies or sinus infection, whooping cough, and exposure to...learn more »
    In This Article
    Children's Cough Causes and Treatments Article
    • What is a cough?
    • What are the common causes of acute cough in children?
    • What are the common causes of chronic cough in children?
    • How is the cause of childhood cough diagnosed?
    • What are the various therapies and home remedies for childhood cough?
    • When should I contact my doctor for childhood cough symptoms?
  • Allergy Treatment Begins At Home Avoiding allergy triggers at home is one of the best ways to prevent allergy symptoms. Controlling temperature, humidity, and...learn more »
    In This Article
    Allergy Treatment Begins At Home Article
    • Allergy treatment facts
    • Introduction
    • Cleaning and more cleaning: what really helps?
    • What are great techniques for mold patrol?
    • How can people with allergies ideally control the air quality and climate in their homes?
    • How can dust covers help?
    • What are carpet powders? Can they help?
    • What to do with the pets?
    • What do I do with those ghastly cockroaches?
  • Indoor Allergens Indoor allergens are substances that can cause an allergic reaction in some people. Common sources of indoor allergens include...learn more »
    In This Article
    Indoor Allergens Article
    • Indoor allergen facts
    • What are allergens?
    • What actually is house dust?
    • What are dust mites?
    • What conditions are most favorable to dust mites?
    • How do dust mites cause allergic symptoms?
    • Can cockroaches cause allergic symptoms?
    • What about allergies to molds?
    • What about allergies to pets?
    • What about allergies to indoor pollens and houseplants?
  • Biorhythms Biologic rhythms, or biorhythms, are how our bodies respond to the regular phases of the sun, moon, and seasons. A medical...learn more »
    In This Article
    Biorhythms Article
    • What are biologic rhythms?
    • How does the "body clock" affects symptoms of illness?
    • What are examples of specific diseases affected by biorhythms?
    • Angina
    • Heart attack
    • High blood pressure (hypertension)
    • Hay fever (allergic rhinitis)
    • Asthma
    • Can the "body clock"  affect diagnostic testing?
    • Can drug therapy be matched to the "body clock?"
  • Drug Allergy Drug allergies are cause when the immune system mistakenly creates an immune response to a medication. Symptoms of a drug...learn more »
    In This Article
    Drug Allergy Article
    • What is a drug allergy?
    • What are the symptoms of drug allergy?
    • What drugs are people most allergic to?
    • How is a drug allergy diagnosed?
    • What is the treatment for a drug allergy?
    • What should I do if I have an allergic reaction to a drug?
  • Latex Allergy Latex allergy is a condition where the body reacts to latex, a natural product derived from the rubber tree. The reaction can...learn more »
    In This Article
    Latex Allergy Article
    • Latex allergy facts
    • Why latex?
    • What is latex and where is it found?
    • Who is at risk?
    • How is latex allergy detected?
    • How is latex allergy treated?
    • Latex-Containing Products
  • Sick Building Syndrome Multiple chemical sensitivity (MCS) or also referred to as sick building syndrome or environmental illness is the name given by...learn more »
    In This Article
    Sick Building Syndrome Article
    • Sick building syndrome facts
    • What is sick building syndrome?
    • Why is sick building syndrome controversial?
    • What causes sick building syndrome?
    • What are risk factors for sick building syndrome?
    • What are sick building syndrome symptoms and signs?
    • How is sick building syndrome diagnosed?
    • What is the treatment for sick building syndrome?
    • What are complications of sick building syndrome?
    • What is the prognosis of sick building syndrome?
    • Is there a way to prevent sick building syndrome?
  • Allergic Cascade The allergic cascade refers to allergic reactions that happen in the body in response to allergens. A variety of immune cells and...learn more »
    In This Article
    Allergic Cascade Article
    • The allergic cascade facts
    • Who are the "players" in the allergic cascade?
    • What about a more detailed look at the "players?"
    • What are cytokines?
    • What is the "early phase" of an allergic reaction?
    • What is the "late phase" of an allergic reaction?
    • What are the consequences of the allergic cascade?
    • How does understanding the allergic cascade help?
  • Occupational Asthma Occupational asthma is a type of asthma caused by exposure to a substance in the workplace. Symptoms and signs include wheezing,...learn more »
    In This Article
    Occupational Asthma Article
    • Occupational asthma facts
    • What is occupational asthma?
    • What causes occupational asthma?
    • What are risk factors for occupational asthma?
    • What are symptoms and signs of occupational asthma?
    • How is occupational asthma diagnosed?
    • What is the treatment for occupational asthma?
    • What are complications of occupational asthma?
    • Can occupational asthma be prevented?
    • Where can a person find more information about occupational asthma?