The presence of Kshar Sutra in the fistulous tract does not permit the cavity to close down from either end and there is continuous drainage of pus along with the Kshar Sutra itself. The Kshar Sutra Treatment in Chandigarh slowly cuts through the fistulous tract from the apex to the margin. There is an ideal concurrent cutting and healing of the tract and no pocket of pus is allowed to stay back.