Anus fistula. Any ayurvedic treatment?

Hi, I was diagnosed anus fistula in the year 2016 November and got surgery on the same month. It was removed and it took me sold 2 months to heal the wound or the surgery area. But after that I am undergoing some issues wouldn't understand it is recurrence or some other problem since I went for regular check up with my same doctor his saying was I am getting alright wound is getting healed but still I have the pain in that particular area near anus and some time may be due to this I get pain in anus and surrounding area. I get discharge of pus and some time blood too. That particular area near anus seems to be like little bulge and every time I pass motion I feel like that area got bulge and it pains lot I have to press it to get relief and from that motion pus blood ooze out from and even from motion area. I am facing this from the day surgery happened and still now facing it. It has reduced lot but didn't completely go. is it recurrence? any ayurvedic treatment?