Probably just irritated skin my friend. A penis health creme might be your solution. These cremes are to be applied daily, and can help with all sorts of skin issues down there. There are a few cremes on the market, but I suggest getting one with natural ingredients in order to avoid side effects. Good luck!
Hello,
It can be due to friction rub, chafing or fungal infection. Wash the areas several times with fresh water. Do not use any cosmetic products at the sites. You can apply some calamine lotion at the rash as it will help in soothing the skin. Also wear cotton undergarments. Application of mild corticosteroid cream and oral antiinflammatories like ibuprofen/acetaminophen are also helpful. If the symptoms are severe then it will be best to consult 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 dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.