Hello, i had undergone laser surgery 2 days ago for posterior fistula in ano. I am currently taking O2 antibiotic tablet (5 days) and pain killer and also, cleaning that area with oxum spray and using ano metrogyl cream. But still, from yesterday evening, i have been noticing pus discharge on the gauge cloth that i place over there. I am really worried that how many days will it take to heal and pus formation and discharge will stop. I have attached a pic for better understanding. please look into it and advice me accordingly. Thank you.