Fistula activity has been the same, patchy. Sometimes non-existent, sometimes making presence known! Generally though, very light and manageable.
I had a routine scope a few weeks back. Again they kept an eye out for my mystery fistula, and it managed to avoid detection, again. There is 'inflammation' and some kind of area of 'depression' which they assume has something to do with it.
The doc said because of location, a seton would not be useful. I was prescribed a month of flagl and cipro to see what it could do. Symptoms seemed to ease for the month, but have appear to have restarted since I finished the course.
So, same story as Oct '13, no action is recommended. Just live with it, and come back if it's causing trouble.
It's been a couple of years now, and symptoms have been relatively consistent. Here's hoping it stays that way!