I have an anal fistula that has resulted in a abscess, I had surgery to open the abscess. It is still draining 3 months later. I am in line to see a specialist but that could take 6 months I have been told. Problem other than being extremely annoying and embarrassing is, I had two surgical incisions, I am now draining out of four holes! And lately it has turned colour and has a very distinct odour.