I experienced pain in my L side of anus after bowel mov't. I had fistulotomy in R side in anus few days ago. Nothing on L. What do I have to expect?

Expectations. It is normal to have pain all around the anus after this operation. Should slowly get better if the course of 6-8 weeks. Keep the wound clean with regular soap and water. If you're concerned, call your surgeon. They will help you. Hope this helps!