Anal Fistula - What worked for me - No surgery
I had a anal fistula in 2002 and was treated by the kshar sutra method.
It got cured and no problems until 2007 when it happened again. I went to the doctor and then he recommended me another surgery. The surgery as painful it is, was something i wanted to avoid.
I did the following. There is a betadine solution(which is nothing but antiseptic) that is available over the counter in walgreens etc. I used it and inserted the solution in my anus(3-4 drops at a time). I did it twice a day after defaceation. I did this for two months and my painful fistula is gone. I suffered for about 8 months(when it drained every week one day) before I decided to use this technique and it has worked for me.
This method was much easier than my first surgery.
Downs- After you insert 3-4 drops in your anus, you might feel like going to the toilet for excretion. So just lie on your stomach for about 20 minutes to prevent that urge to excrete.