Hello,
You can use hydrocortisone 1% cream on the anal area but it is to be used only after prescription and examination from your dermatologist as it is not without side effects. It can cause increased skin fragility and thinning of the skin. 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.