Arm/Armpit Rash, lime disease?
I have a rash underneath my arm, almost in my armpit but not quite. Its only on one arm and its on the non-hairy part of my armpit (the non-deodorant applied area of my armpit). It started small and has been growing for a week now at about 2-3 millimeters in radius a day, and it has become quite itchy. I killed a tic that was in one of my armpits (I can't remember which one) two weeks ago in Connecticut, but the rash does not resemble a bullseye and I am experiencing no other symptoms of limes disease.
I am an active outdoorsy guy so I am wondering if I might have gotten the rash from some poisonous plant. The rash doesn't resemble something gotten from poison ivy though, which is the most common poisonous plant here in Vermont.
I just have no idea, and the rash is ******* me off with its itchiness. Please help if ya can, any advice is much appreciated. Thank you.