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A member asked:
I just got red, itchy bumps on my upper left arm out of nowhere. what could have caused this?
3 doctors weighed in across 2 answers
Contact allergic: dermatitis . Over the counter steroid ointment and antihistaminics can help.
Answered 8/20/2017
3.7k views
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?Hives: Sounds like you may have hives which would be an allergic reaction. You can try taking some Benadryl (diphenhydramine) and see if that helps. If the rash persists, spreads, or you develop fever, make sure you get in to see you physician. Good Luck!
Answered 7/30/2017
3.7k views
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