After Fissurectomy, it's common to see fecal leak for few days to week. And it will be normal thereafter.
However you may browse for " Kegels excercise" on internet and do it frequently. It will help in strengthing the muscles around the anal region.
Health Tips
1. Sitz bath and Kegels excercises are very important to you, and you must do it as advised.
2. consume soft diet.
3. Drink adequate water.