2 doctors weighed in:

Has anyone had a false positive from a skin allergy test? Should I repeat tests each year?

2 doctors weighed in
Dr. Paul Carter
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: Yes.

It is possible to have false positive tests with an allergy skin test.
However, if the test is done by a board certified allergist trained to read the test correctly, taking into account the size of the reactions and comparing them to the positive and negative controls, they should be able to advise you on the likelihood of a test being a true positive or false positive. No need to retest yearly.

In brief: Yes.

It is possible to have false positive tests with an allergy skin test.
However, if the test is done by a board certified allergist trained to read the test correctly, taking into account the size of the reactions and comparing them to the positive and negative controls, they should be able to advise you on the likelihood of a test being a true positive or false positive. No need to retest yearly.
Dr. Paul Carter
Dr. Paul Carter
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