A member asked:

6wks post allergy testing 4 cough, mark from + injection still on arm. smaller after wk1 but still larger than tip of finger/purple-redish. treatment?

A doctor has provided 1 answer
Dr. John Chiu answered

Needs time: It is unusual to have a mark 6 weeks after an allergy skin test-most of the time within 1-2 days. If there is no pain or fluid in the area, suggest that you wait another month to see how it progresses. On the other hand, one wonders if the test site was infected and thus the prolonged reaction.

Answered 4/10/2016

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