I have been a long time sufferer of a fissure. One thing to add that has helped me a great deal is using Aloe ointment, CVS brand that contains no scent or alcohol. It is clear and seems to keep that area down there from flaring up and keeps the area nice and moisturized. I have an absess as well which the Ointment has reduced the size if it as well as the fissure and reduced bleeding. Using wipes CVS brand has also helped out.
Just wanted to pass along what i have uncovered or experienced. Does a real good job!
Bernard