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I have a large, itchy red welt on my arm. Hot and hard to the touch. No bite/puncture mark anywhere. What could it be?

Posted by endria

I have had this twice before, once on my foot and once on my arm.  I thought they were bug bites both times, but never found puncture marks.  The welts lasted for about two weeks, were hard and hot to the touch, very itchy. 
Answers (1)
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sounds like a flea bite  do you have animals?
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