Hello,
Without examination,confirmation of a diagnosis is tough but it can contact dermatitis,eczema,rash due to friction rub with clothes, dermatitis (atopic, contact, allergic),excessive sweating causing sweat dermatitis or balanitis(due to an underlying infection (bacterial and fungal as well as other organisms).
Wash the areas several times with fresh water.You can apply some calamine lotion at the rash as it will help in soothing the skin.You can take some OTC oral antihistamine medications like Benadryl or Claritin and see if it helps.
For mild-moderate symptoms a weak steroid may be used (e.g. hydrocortisone as dermacort).Also good quality moisturizers to prevent moisture loss from the skin.
If still the symptoms do not improve then pls get a clinical examination done by a dermatologist.
I hope that helps. Take care and pls do keep me posted on how you are doing or if you have any additional queries. Kind regards.
Just a quick update after recent shower the skin has now started to peel... Again any help is greatly appreciated!!!
Iain