I have a blister on my hand, with a black mark on the top of it. It looks similar to a poison ivy blister, but I've not had the black mark before. Other smaller blisters are forming on my hand and arm, and 2 red welts under my chin. Any idea what this could be?
Fri, 14 Mar 2014
For a more detailed, immediate answer, try our premium service
[Sample answer]
We use cookies in order to offer you most relevant experience and using this website you acknowledge that you have already read and understood our
Privacy Policy