perianal abscess , fistula surgery and strange feeling whilst healing

i had a large perianal abscess lanced , drained and all the effected area removed 2 weeks ago , the abscess formed after a slow draining fistula healed over and ended up with a bulging abscess , surgeon chopped out a inch and half wide by 2 inch deep lump from the infected area and packed it , i have then been having to pack it fully each day and redress and pack after each bowl movement due to how close it is to my anus , although annoying and a bit unpleasent it seamed to be going ok , healing nicely from the inside out and things were comfortable . unfortunatly the last 3 days something has changed , there is know drainage now from the wound and it is only now bout inch and quarter deep , the problem is i have noticed that when i sit down i can feel either liquid or air moving around and in the wound area , if i press on it it feels like the liquid or air is going back down the fistula and into the rectum area and if i fart i can feel air and slight discharge from the wound and also when going to the toilet i can see pus , mucus liquid come out befor the stool . i am concerned that once the wound heals over , the abscess will return and i will be back to square one . my surgeon did mention seton surgery maybe required or that the fistula may have to be opened right up . i was just wondering whether anyone else had similar complications and whether if the wound heals the liquid that is moving around will stop comming up the fistula and just come straight out of my bottom or if there are other alternative then surgery . i have been told that i will c the surgeon 6 weeks from when op was done so got another 3 weeks and he is not an anal. rectal surgeon ,just a normal surgeon so he will not do seton or fistolectomy as that will be reffered to my GI and anal rectal surgeon to decide . i am just concerned coz already had 3 months off work this year coz of various crohns issues and now signed off again for another month which will take me up to seeing surgeon , and then dont know what the situation will be ,i dont know whether to push to be seen sooner or wait and c what happens . any feed back appreciated

 Well it seems you have the same issues as my 18 year old son.  He was diagnosed when he was 11 years old and we didn't even know that abscess's and fistulas excited until about 2 years ago.  Now - he stay in almost constant discomfort and has had several surgerys to drain that area, etc...  He even has to wear ladies kotex pads in his undearwear as it drains all the time.  He even had one burst on his bottom and blood was everywhere.  He (over 2 years later) is being told that it is healing.  He is finding that as his disease is bad or worsening, then his bottom hurts worse.  He takes a LOT of baths as it gives him the best comfort plus keeps that area nice and clean. He is getting ready to enter into the test study for a drug called Vedolizumab or otherwise known as MLN0002.  We are hoping its are next miracle as we have had alot of them in these last several years. If you have any question, I would certainly be willing to chat or help if I can.