Hello Dear and thanks for the query
I have read your query in detail. It seem that you have fistula in ano. Consult your general surgeon
to get confirmed. The treatment of fistula in ano is a simple small surgery by excision of the track made the fistula and than allow the wound to heal by it's own.
The other opition is Ksar Sutra treatment in ayurveda. In which a medicated thread in passes through the track and tied and than tighten every day or weekly. Both the procedure takes almost same time to heal but both has there own limitations.
Consult your surgeon and ask which is best for you.