My son had one blister like sore on inner thigh. It got bigger and redish purple the longer it was there. It took awhile to go away. Now he has noticed 2 more they start off very small like an ingrown hair. They are just on his legs. they are not painful or itchy...what is this????
Hi, I have the same thing only I'm a girl. Mine are exactly the same but start out tiny and get huge, and they spread recently one got infected and now it's extremely itchy! I went and got it checked out and it turned out to be a small allergic reaction. It was because of my shaving without any sort of lube. So unless your son shaves(I don't think so) it could be an allergy to something else.. I'm no doctor or anything but I think taking antibiotics would help.