Stenosis with active tenderness.

I had a fistuletomy with internal lateral sphincterotomy 2 months back. I still have discomfort and hence visited a surgeon for a review. He examined the wound and told me that the wound has healed and has a minor cut due to bowel movement, which will heal gradually. But he also told me that the wound has created a minimal stenosis with active tenderness around the scar tissue. He advised using Cremagel for 15 days. If there are no improvements, then anal dilation will be the next step. If that too does not work, then i might need surgery. Is tenderness a common problem after fistula surgery? Will this get better over time as the scar tissue matures? Is minimal stenosis curable without surgery? How long will the tenderness last? What are the steps to improve the condition to avoid surgery?