It appears to be healing mostly on its own. I've been exposing it to air, I've washed it thoroughly, but I haven't done anything like using lotion or cream. Thankfully, it doesn't hurt or anything, it doesn't "get in the way", per se.
I will consult my doctor if it gets worse, but as of right now, I don't think there's any need for major concern.
Hello,
This is due to friction rub or chafing. Chafing occurs when the skin becomes irritated by the friction caused by rubbing – either against other skin or against a foreign material. 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. 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 doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.