Hello,
It can be due to folliculitis or sweat dermatitis. Avoid using any lotions and creams for the meantime. Use a mild cleanser with moisturizing properties like Cetaphil. Also use cotton clothes and change the clothes twice if there is any increased sweating. Try keeping the skin free of sweat as far as possible. If the symptoms still persist then you can apply mild steroid like dermacort after cpnsulting a doctor.For the itching antihistaminics like Benadryl or Claritin can be taken and try to have dandruff free hair.
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.
im a wash ahalllick i takes showers 3 times a day and still my body get breaks out who can help plezzzz asap :(