Is the pus normal after piles surgery?

I had done surgey - "High end fistulectomy haemorrhoidectomy with sphincterotomy" before 14 days due to piles and fissures. There were some light bleeding and pus during first 7 days. After that, these days I can see some yellowish fluid smelly discharge coming out from bottom. I am noticing that motion is not properly going (only little pieces). During motion, I am feeling somthing stuck at the anus and severe skin craking feeling. Some time the anus is not closing properly, due to that I am feeling discomfort. Some time i can't urinate properly due to this pain. I am using ointment - "protoctosedyl" and antibiotics. I would like to know below queries     1. How long does it take to stop this yellow pus discharge ? 2. Why the skin craking feeling during motion? 3. How long does to take to heal completely and back to normal ? 4. Is sitz bath with betadin help or should I use ice to avoid swelling? 5. How to make motion loose and easy to pass ? Is this due to medication ?