Thanks for choosing health care magic for posting your query.
I have gone through your question in detail.
It is possible that it could be herpes
, although we will require a proper physical examination to comment on it with certainty. If it is herpes then it will not respond much to the antibiotics. Do get yourself checked with a dermatologist
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
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Wish you good health,
Dr. Srikanth Reddy M.D.