MedicineNet.com

About Us | Privacy Policy | Site Map
February 7, 2012

Common Cold

Medical Author:
Medical Editor:

Medicines for the Common Cold

Making Sense of OTC Cold and Cough Medications

Medical Author: Melissa Conrad Stöppler, MD
Medical Editor: Barbara K. Hecht, PhD

Unsure about the hundreds of cold and flu preparations on the drugstore shelves? You're not alone. Deciding among the OTC (over-the-counter) remedies for cold, flu, or allergy symptoms can be intimidating, and a basic understanding of the types of drugs contained in these medications can help you make an informed choice.

Decongestants

Decongestants are the drugs of choice for a stuffy, congested nose. Decongestants act by narrowing the blood vessels in the nose, leading to decreased blood flow in the nasal tissues and reduced leakage of fluid from the nose. Decongestants can either be taken orally or applied locally (topically) in the form of nasal sprays or drops.

Learn more about cough and cold medications »


What is the common cold, and what causes it?

The common cold is a self-limited contagious illness that can be caused by a number of different types of viruses. The common cold is medically referred to as a viral upper respiratory tract infection. Symptoms of the common cold may include cough, sore throat, nasal congestion, runny nose, and sneezing. More than 200 different types of viruses are known to cause the common cold, with rhinovirus causing approximately 30%-35% of all adult colds. Other commonly implicated viruses include coronavirus, adenovirus, respiratory syncytial virus, and parainfluenza virus. Because so many different viruses can cause a cold and because new cold viruses constantly develop, the body never builds up resistance against all of them. For this reason, colds are a frequent and recurring problem. In fact, children in preschool and elementary school can have six to 12 colds per year while adolescents and adults typically have two to four colds per year. The common cold occurs most frequently during the fall and winter months.

The common cold is the most frequently occurring illness in the world, and it is a leading cause of doctor visits and missed days from school and work. It is estimated that individuals in the United States suffer 1 billion colds per year, with approximately 22 million days of school absences recorded annually.

How is the common cold transmitted?

The common cold is spread either by direct contact with infected secretions from contaminated surfaces or by inhaling the airborne virus after individuals sneeze or cough. Person-to-person transmission often occurs when an individual who has a cold blows or touches their nose and then touches someone or something else. A healthy individual who then makes direct contact with these secretions can subsequently become infected, often after their contaminated hands make contact with their own eyes or nose. A cold virus can live on objects such as pens, books, telephones, computer keyboards, and coffee cups for several hours and can thus be acquired from contact with these objects.

What are the symptoms and signs of the common cold in adults, children, and infants?

The symptoms of the common cold typically begin two to three days after acquiring the infection (incubation period). Symptoms and signs of the common cold vary depending on the virus responsible for the infection and may include the following

The signs and symptoms of the common cold in infants and children are similar to those seen in adults. The cold may begin with a runny nose with clear nasal discharge, which later may become yellowish or greenish in color. Infants and children may also become more fussy and have decreased appetite.

The symptoms of the common cold will typically last anywhere from four to 14 days, with most individuals improving in one week.

Does it have anything to do with exposure to cold weather?

Though the common cold usually occurs in the fall and winter months, the cold weather itself does not cause the common cold. Rather, it is thought that during cold-weather months people spend more time indoors in close proximity to each other, thus facilitating the spread of the virus. For this same reason, children in day care and school are particularly prone to acquiring the common cold.



Patient Discussions

Viewers share their comments

Common Cold - What You Do To Avoid Question: What do you do to avoid catching a cold?

MedicineNet Doctors

Suggested Reading on Common Cold by Our Doctors

  • Related Diseases & Conditions

    • Sore Throat (Pharyngitis)
      • Most sore throats are caused by viruses or mechanical causes (such as mouth breathing) and can be treated successfully at home. However, a person should be seen by a health care professional if they have a sore throat that has a rapid onset, and is associated with a fever or tenderness of the front of the neck; a sore throat that causes the person to have difficulty swallowing (not just pain swallowing) or breathing; or if a sore throat lasts for more than a week.
    • Headache
      • Headaches can be divided into two categories: primary headaches and secondary headaches. Migraine headaches, tension headaches, and cluster headaches are considered primary headaches. Secondary headaches are caused by disease. Headache symptoms vary with the headache type. Over-the-counter pain relievers provide short-term relief for most headaches.
    • Sinus Infection
      • Sinus infection (sinusitis) signs and symptoms include headache, fever, and facial tenderness, pressure, or pain. Treatments of sinus infections are generally with antibiotics and at times, home remedies.
    • Swollen Lymph Nodes
      • Lymph nodes help the body's immune system fight infections. Causes of swollen lymph nodes (glands) may include infection (viral, bacterial, fungal, parasites). Symptoms of swollen lymph nodes vary greatly. They can sometimes be tender, painful or disfiguring. The treatment of swollen lymph nodes depends upon the cause.
    • Upper Respiratory Infection
      • An upper respiratory infection is a contagious infection of the structures of the upper respiratory tract, which includes the sinuses, nasal passages, pharynx, and larynx. Common causes of an upper respiratory infection include bacteria and viruses such as rhinoviruses, group A streptococci, influenza, respiratory syncytial, whooping cough, diphtheria, and Epstein-Barre. Examples of symptoms of upper respiratory infection include sneezing, sore throat, cough, fever, and nasal congestion. Treatment of upper respiratory infection are generally with OTC medication and home remedies.
    • Chronic Cough
      • Chronic cough is a cough that does not go away and is generally a symptom of another disorder such as asthma, allergic rhinitis, sinus infection, cigarette smoking, GERD, postnasal drip, bronchitis, pneumonia, medications, and less frequently tumors or other lung disease. Treatment of chronic cough is dependant upon the cause.
    • Eustachian Tube Problems (Problems Clearing Your Ears)
      • The Eustachian tube is a membrane lined tube that connects the middle ear space to the back of the nose. Problems include partial or complete blockage which can cause popping, clicking, and ear fullness. Allergies, sinus and ear infections, or the common cold can cause this blockage, while altitude changes can cause symptoms in those persons with Eustachian tube problems. Treatment includes several maneuvers (swallowing, chewing gum, yawning etc.), which can be done to improve Eustachian tube function.
    • Laryngitis
      • Laryngitis is an inflammation of the voice box (vocal cords). The most common cause of acute laryngitis is infection, which inflames the vocal cords. Symptoms may vary from degree of laryngitis and age of the patient. Common symptoms include croup, hoarse cough, fever, cold, runny nose, dry cough, and loss of voice. Chronic laryngitis generally lasts more than three weeks. Causes other than infection include smoking, excess coughing, GERD, and more. Treatment depends on the cause of laryngitis.
    • Sinus Headache
      • Sinus headache is caused by a sinus infection or inflammation of the sinus cavities. The primary symptom of a sinus infection is pain and increasing pressure overlying the area and associated tenderness to the touch. Treatment of a sinus headache depends on the cause.
    • Snoring
      • Snoring, like all other sounds, is caused by vibrations that cause particles in the air to form sound waves. While we are asleep, turbulent air flow can cause the tissues of the nose and throat to vibrate and give rise to snoring. Any person can snore. Snoring is believed to occur in anywhere from 30% of women to over 45% of men. People who snore can have any body type. In general, as people get older and as they gain weight, snoring will worsen. Snoring can be caused by a number of things, including the sleep position, alcohol, medication, anatomical structure of the mouth and throat, stage of sleep, and mouth breathing.
    • 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 symptoms, which symptoms one wishes to relieve, and the active ingredients in the OTC product. Taking products that only contain the medications needed for relieving your symptoms prevents ingestion of unnecessary medications and reduces the chances of side effects.
    • Respiratory Syncytial Virus
      • Respiratory syncytial virus (RSV) is a highly contagious viral infection. Symptoms include fever and nasal congestion and discharge. Treatment focuses on supportive care.
    • Adenovirus 14
      • Adenovirus infection, particularly Ad14, or the "killer cold virus" has been on the increase in the past two years. Symptoms range from those experienced with colds, sore throat, bronchitis, pneumonia, diarrhea, pinkeye, fever, bladder infection, and neurological conditions. Diagnosis and treatment options need to be discussed with your physician.
    • Reye's Syndrome
      • Reye's syndrome (RS, or Reye syndrome) is a sudden, sometimes fatal, disease of the brain with degeneration of the liver. Reye syndrome occurs in children and comes after the chickenpox or an influenza-type illness, is also associated with taking medications containing aspirin. Symptoms include vomiting, listlessness, irritability or combativeness, confusion, delirium, delusions, convulsions, and loss of consciousness. Treatment depends on early diagnosis and focuses on protecting the brain against irreversible damage by reducing brain swelling, reversing the metabolic injury, preventing complications in the lungs, and anticipating cardiac arrest.
    • Children's Health
      • Children's health is focused on the well-being of children from conception through adolescence. There are many aspects of children's health, including growth and development, illnesses, injuries, behavior, mental illness, family health and community health.
    • Headaches in Children
      • Kids get headaches and migraines too. Many adults with headaches started having them as kids, in fact, 20% of adult headache sufferers say their headaches started before age 10, and 50% report their headaches started before age 20.
    • Emphysema, Chronic Bronchitis, and Colds
      • If you have a COPD such as emphysema, avoiding chronic bronchitis and colds is important to avoid a more severe respiratory infection such as pneumonia. Avoiding cigarette smoking, practice good hygeine, stay away from crowds, and alerting your healthcare provider if you have a sinus infection or cold or cough that becomes worse. Treatment options depend upon the severity of the emphysema, bronchitis, or cold combination.
    • Health and the Workplace
      • Early warning signs of job stress include headache, sleep disturbance, difficulty in concentrating, short temper, upset stomach, job dissatisfaction, and low morale. Stress on the job can be damaging to your health in that job stress is the outcome when job demands cannot be met.
  • Medications

  • Procedures & Tests

  • Pictures, Images & Illustrations

  • Doctor's & Expert's Views

  • Health News

  • Health Features

Women's Health

Find out what women really need.



Symptom Checker: Your Guide to Symptoms & Signs: Pinpoint Your Pain



Common Cold

What is the Eustachian tube?

The Eustachian tube is a tube that originates in the back of the nose, runs a slightly uphill course, and ends in the middle ear space. The middle ear space is the hollowed out portion of the skull bone that contains the hearing apparatus and is covered on one side by the eardrum. In adults, the Eustachian tube is approximately 35 mm long (1.3 inches) and approximately 3 mm in diameter (less than 1/10 inch). Cartilage provides the supporting structure for the first two-thirds of the Eustachian tube, with the last third (the part closest to the middle ear space) being made of bone.

The tissue that lines the Eustachian tube is similar to that inside the nasal cavity and may respond the same way (swelling) when presented with similar stimuli. The Eustachian tube was named in honor of the 16th century Italian anatomiast Eustachius. Sources credit Almaceon of Sparta as the first to describe the structure in approximately 400 BC...

Read the Eustachian Tube Problems (Problems Clearing Your Ears) article »







Use Pill Finder Find it Now

Pill Identifier on RxList

  • quick,
    easy,
    pill identification

Find a Local Pharmacy

  • including
    24 hour
    pharmacies