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Skin Contact Allergies: What Your Doctor Will Do

If you have severe or ongoing skin problems, it may be time to see an allergist or dermatologist. They can perform allergy tests and try to help you pinpoint what you’re allergic to.

You probably don’t need to see a doctor if:

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  • a rash is clearly linked to a specific trigger that you can avoid
  • you have a single, mild reaction that clears up on its own

But if you’re unsure about anything, call your doctor.

Testing for Skin Contact Allergies

A skin contact allergy -- also called contact dermatitis -- occurs when something touches your skin that you are sensitive to or allergic to. Your doctor may suspect a skin contact allergy based on your medical history and a physical exam. You’ll be asked if you’ve recently been exposed to common allergens like perfume, jewelry, or latex.

If your doctor thinks you have a contact allergy, you may have a patch test. For this test, tiny amounts of things that could cause an allergic reaction are placed on patches and taped to the skin on your back. They have to stay dry, so you can’t shower or bathe during the test period. You need to avoid sweating, too. After 48 hours, your doctor will check your skin to see if you have a reaction to anything. He may schedule another follow-up to check again in a few days.

Rarely, your doctor may want to do a blood test or skin biopsy, where a small sample of skin is taken for a test.

Treating Skin Contact Allergies

Treatment for skin contact allergies depends on what’s causing them. Many times, you can simply avoid the trigger. Use cold compresses, calamine lotion, or an oatmeal bath to soothe skin and relieve itchiness.

For small areas of skin, your doctor may prescribe a steroid cream to help treat symptoms. Use it only as often as directed. Using more than recommended, or using it more often, won’t make it work any better. Try applying it after a bath or shower to get the biggest benefit. If the reaction covers a larger area of skin, you doctor may prescribe steroid pills and antihistamines.

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