I have a rash on both my arms (the part that touches the armpit) that has been evolving for several weeks. Early on, it was large bumps (1-1.5cm x .5cm) on the armpit itself, now it is small bumps on the skin that surrounds the armpit. On the right arm it's about 3.5cm (from the start of armpit up the arm) and about 1.5 cm (on the perimeter of the armpit only on the right side)They have always been reddish, and itchy. I also have a patch of the rash on my chin, under my lower lip. The facial rash isn't itchy, but it has existed for the same duration and I have NEVER had acne.
I've been using over-the-counter cortizone lotion with limited success. It decreases the inflammation but doesn't seem to stop the growth (in terms of sq.cm).
What could this be!?!?! I haven't recently changed ANYTHING!! I.e. deodorant, bodywash, facewash, dryer sheets, detergent, etc. I also haven't started any new medicines.
Please let me know!!!! My internist wasn't sure what it was.