Hello,
These lesions don’t seem to be related to STD’s but if they were blister sort of bumps which scabbed over, then herpes definitely needs to be ruled out.
I cannot confirm anything without examination but it can be hives, allergies, irritated hair follicles or viral rash. Take some antihistaminic like Benadryl or Claritin and apply some calamine lotion on the rash. Also wear cotton clothes and keep the skin sweat free. If the symptoms persist then please get it examined from a dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
can someone tell me what can be these lesions please?