In order to have an accurate skin test individuals must be off antihistamines for a period of time (see Requirements for Preparation for Skin Testing)
No, unless directed by your OAAC physician.
The OAAC is an allergy clinic that specializes in the diagnose of allergic diseases.
Often, chronic skin rashes are not caused by an allergy and therefore are best evaluated first by a skin specialist or dermatologist. If your dermatologist is concerned about a potential allergic trigger to your rash, a request can then be made for allergy testing if needed.
Chronic hives, or urticarial, is a common skin disorder that can be very bothersome due to the severe itching. However, chronic hives are rarely caused by an allergy. Therefore, allergy testing is typically not needed, but we can assist you by diagnosing your hives and coming up with a treatment plan that can help control your rash and itching.