- 10 Common Allergy Triggers Slideshow Pictures
- Take the Quiz on Allergies
- Nasal Allergy Relief Products Slideshow
- Patient Comments: Hay Fever - Symptoms
- Patient Comments: Hay Fever - Treatment
- Find a local Asthma & Allergy Specialist in your town
- Hay fever facts
- What is hay fever? What are hay fever symptoms and signs?
- Why does an allergic reaction occur?
- What causes allergic rhinitis?
- What are risk factors for allergic rhinitis?
- When and where does allergic rhinitis occur?
- Is allergic rhinitis contagious?
- What specialists treat allergic rhinitis?
- How do health-care professionals diagnose allergic rhinitis? How do health-care professionals identify allergies?
- What is the treatment for allergies?
- Are there home remedies for hay fever?
- What is the prognosis of allergic rhinitis?
- Is it possible to prevent allergic rhinitis?
Quick GuideCould I Be Allergic? Discover Your Allergy Triggers
What specialists treat allergic rhinitis?
Allergists are medical specialists trained in the diagnosis and treatment of allergies, including hay fever. People with hay fever also often seek care from a primary-care physician, including internists, pediatricians, and family practitioners.
How do health-care professionals diagnose allergic rhinitis? How do health-care professionals identify allergies?
Typically, allergies are initially diagnosed by a combination of characteristic symptoms coupled with exam findings that correspond with allergies.
If a person is experiencing the typical symptoms of hay fever, a consultation with an allergy specialist can help identify the offending substances. Since the ideal way to manage an allergy is to avoid the substances that cause allergic reaction, it is important to first identify these substances (allergens). Many allergens can be suspected from information obtained in a patient's history. For example, if symptoms usually worsen with exposure to cats, then cat dander protein is a probable allergen causing the symptoms. If cutting grass is associated with the onset of symptoms, then grass allergy is probable. A patient's history of reactions is important in determining his/her unique allergies. Allergy testing is only done when allergies are debilitating enough that patients desire allergy immunotherapy.
Because the identification of allergens is important and often difficult to pinpoint, skin testing is often needed to identify exactly the specific substance causing the allergy. Skin testing is done with minimal discomfort and is performed as follows:
- A small amount of the suspected allergy substance is placed on the skin.
- The skin is then gently scratched through the small drop with a special sterile needle. This is known as the prick-puncture method and is typically used for initial evaluations. A second method, known as the intradermal method, involves injection of a small amount of the test substance into the skin. Intradermal testing is more sensitive but also tends to lead to more false-positive results.
- If the skin reddens and, more importantly, swells, then an individual is said to be "sensitized" to the particular allergen. If typical symptoms occur when a sensitized individual is exposed to the suspected substance, then allergy to that substance is probable.
- The skin testing described is tolerated by the youngest of patients and should be the standard of testing.
- Skin testing is not indicated for people who are at risk of a severe (anaphylactic) allergic reaction, who have certain skin conditions, or who are taking certain medications.
A number of blood tests are also available to aid in the diagnosis of allergy. These blood tests may be useful in people who cannot be skin tested due to skin diseases, who are taking medications that interfere with skin testing, or who are at a high risk of having an anaphylactic reaction to skin testing. These blood tests typically use various techniques to look for IgE antibodies in the blood and by inference suggest allergy in the tissues. If the allergy testing agrees with the history of symptoms upon exposure to the substance, then a diagnosis of allergic rhinitis is likely.