Hello
Welcome to healthcare magic forum.
Thank you for your query.
i understand your concern regarding your skin problem.
I am Dr Gaurav Patel,dermatologist and will answer your question.
It is very difficult to comment specifically from your detail only.
It may be due to
allergic reaction ,photo sensitivity or other
chronic dermatitis.
If it occur same site ,chance of fix drug reaction is there.
You need to be very careful on what you eat ,drink ,wear and expose.
It is very hard to find the reason for it,but
biopsy may help us.
You need to apply good moisturizer and sun screen lotion over skin.
Better to
consult dermatologist for proper treatment.
I hope I answered your question.
Let me know if you have further query.
Wish you speedy recovery.
Regards,