Thanks for the query,
The treatment given to you is correct.
But most important is to find out the cause of your condition.
The cause must be eliminated.
Better get a culture of the material from discharge.
Based on the organism grown, treatment can be done.
Please meet a dermatologist
if the lesions increase
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.