Anyone had laser (Filac) surgery for anal fistula?

I’ve just recently (two days ago) had laser surgery for an anal fistula. I was just wondering if anyone else has had this procedure, and if so what they have experienced post-surgery?
I’m slightly worried because I can still feel the fistula tract and it still feels swollen, is this normal? I was under the impression that it would be removed. Also, I’m experiencing pussy discharge, is this normal and expected?
Thanks