Comparative Study to Assess the Effectiveness of Topical Nifedipine and Diltiazem in the Treatment of Chronic Anal Fissure.

Background: Chronic anal fissure is a common condition which is classically treated by surgery which may lead to incontinence. Recently medical treatment in form of calcium channel blockers (CCB) has gained interest.

Aims: The aim of this study is to compare the effectiveness of local Nifedipine and Diltiazem with lignocaine as control.