Q: Over the past year I’ve suddenly developed allergies. The problem is, I don’t know what I’m allergic to. My doctor wants to do a scratch test. What can I expect? A: Scratch tests are often done in ...

What Is a Skin Allergy Test? Skin testing is one way your doctor can find out what you're allergic to so you can avoid an allergic reaction. Skin testing works because when you have an allergy, your ...