My 18 year old son had a rash in his groin area which was spreading in spots,. He went to the dermatologist who said it was a fungal infections and prescribed a foam and a shampoo. It is now about a month later, and he says the rash is back, now ion the front of his right thigh and lower right back. On his thigh it a rash with dark black spots that look like dried up blisters and on hi lower back it looks like welts and they have muscle tension under the and itch a little. He said the black dots are little, and started as some small red bumps about the size of a silver dollar, those turned into the small dark bumps then the rash spread from there.
Hi, From history it seems that you might be having fungal infection and require proper treatment. Apply antifungal cream or lotion locally. Go for one course of antifungal medicine like Fluconazole 150 mg once in a week for four weeks. Keep local hygiene clean, Chat Doctor. Ok and take care.