Thank you for your advice. I will have a biopsy done.
Hello,
Since the rash has remained for a pretty long time, I suggest you to get it evaluated and get a biopsy skin done to confirm the diagnosis. It can be eczema or psoriasis and the diagnosis needs to be confirmed by a biopsy.
If the symptoms are not controlled by topical antibiotics, then oral antibiotics may be needed. 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.