Hi. Thanks for your query. Noted the history of anal fissurectomy on 26/4/2014, post op pain relived after 1-2 hours of rest, Felt discomfort after defecation the next day, Doctor has prescribed only Diclofenac, wants to whether is it OK to use antibiotics for fast healing.... Since fissurectomy has been done I would advise you the following for fast healing as well as to avoid recurrence which is also very important part of the management of anal fissure. High fiber diet. Avoid all the foods and beverages and stress-like conditions which gives constipation. Laxative for softening the stool- never allow the dose too much to cause liquid stools. Sitz bath- very important- just before passing a stool and after passing a stool. Clean the area very clear of the fecal soiling that remains after cleaning; use cotton soaked in the same water to clean. You can apply liquid povidone iodine locally. Apply nothing else. 5 day course of an antibiotic on prescription of a local Doctor. Add probiotics and multivitamins. Avoid stress and mental tensions at any cost; this is a very important factor.