Hydrocortisone is a steroid cream and if you have been using steroid cream for such a long time, then please do not use it as it can cause side effects like thinning of skin and increased fragility.
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.