Effect of Phenytoin Cream on Wound Healing After Anal Fissure Surgery.

Inclusion Criteria: * Patients of both sexes, * Aged between 18 and 65 years old, * with chronic anal fissure after failure of previous conservative treatment. Exclusion Criteria: * surgically unfit patients due to multiple comorbidities, * patients with concomitant other anorectal pathology, * patient with anal fissure secondary to inflammatory bowel disease, * patients with active anorectal sepsis * patients with previous anal surgery .