Hello,
The symptoms are suggestive of folliculitis and there is nothing to worry about but the other possibilities are of viral rash, heat rash, sweat dermatitis or cysts.
Keep the area clean and apply some topical antiseptics. Also wear loose-fitting cotton clothing and use an antibacterial soap or mild soap like dove. Avoid any kind of cosmetics. Topical antibiotics such as mupirocin or neomycin containing ointment are also useful. In case the symptoms persist then oral antibiotics may be needed. Please consult a dermatologist in that case.
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.
Please let me know if you dont know what this is. Just a straight answer would do from anyone? Thanks and God bless