Allergy testing - skin
Allergy Testing - Skin
Allergy testing is an important diagnostic tool that can help your doctor or allergist to determine what allergens may be triggering your allergies. Skin-based allergy tests are among the most common types of allergy tests used to measure an individual’s sensitivities to specific allergens.
Preparation for skin based allergy testing
Before undergoing an allergy test, your doctor or allergist may ask you to avoid any antihistamines or other medications that could interfere with the accuracy of the results for several days.
Procedure for skin based allergy testing
During the skin test procedure, very small amounts of allergens are pricked or scratched into your skin using the tip of a needle. Allergens are then tested in multiple areas of the body, such as the upper back or forearm. These diluted amounts of allergens are not enough to cause an allergic reaction on their own, but can elicit a reaction in someone with an allergy sensitivity. After a few minutes, the area is then scored for a visible skin reaction such as redness or swelling.
Types of skin based allergy testing
There are several types of skin-based allergy tests that can be used to determine your sensitivity to allergens. These include:
- Prick or scratch testing.
- Intradermal skin tests.
- Patch testing.
Risks associated with skin based allergy tests
Skin based allergy tests are generally considered safe, but there are a few risks associated with this type of testing. These may include:
- Local irritation.
- Systemic reactions.
- Swelling or hives.
- Anaphylactic shock.
When is skin based allergy testing recommended?
Skin based allergy tests are generally recommended when other forms of allergy testing, such as blood tests, serum tests or inhalation tests, fail to provide an accurate diagnosis or when you are exhibiting signs and symptoms that may point to an allergy. Skin tests are also beneficial when you have had a reaction to an allergen or suspect an allergen may be causing your symptoms.
Why skin based allergy testing?
Skin based allergy tests are an efficient and accurate way to measure a person’s reactions to a range of allergens. They can also provide quick results that can help determine the best course of treatment quickly.
