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What is the best medicine for poison sumac rash? Rash is on my right arm and spreading

1 doctor weighed in
Dr. Mary Engrav
Emergency Medicine

In brief: Treatment

Treatment for allergic dermatitis caused by poison sumac is Benadryl (diphenhydramine) or other antihistamines such as vistaril, steroids such as prednisone, and histamine-blocking medications such as tagamet.
If you have worsening rash, any shortness of breath, or feel light-headed then you would have to be seen as an emergency.

In brief: Treatment

Treatment for allergic dermatitis caused by poison sumac is Benadryl (diphenhydramine) or other antihistamines such as vistaril, steroids such as prednisone, and histamine-blocking medications such as tagamet.
If you have worsening rash, any shortness of breath, or feel light-headed then you would have to be seen as an emergency.
Dr. Mary Engrav
Dr. Mary Engrav
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