First I would like to thank this site for all of the tips I received. I suffered with an anal fissure for about two years and I felt it was necessary now that my fissure has healed to share what worked for me, as this is such a painful problem .
I have tried most of the remedies on this site (except surgery my last option) some helped mildly and some were terrific. The first thing I did was to keep my BM's the consistency of toothpaste. To accomplish this I took in about 35 grams of fiber a day along with using Mira Lax at night about a capful. I also took 1200 mg of Magnesium per day in the morning (the adult dose is normally 400 mg I am 5'10 210) and I drank a lot of water at night.
The second thing I did was to start using Tenactin three times a day, sometimes more, on the outside of my anus. I know sounds crazy but hey it is for cracked skin and itching. In any case it was amazing within about 4 hours of my first use my spasms calmed. Within a month I was about 90% healed. I also added virgin coconut oil to it until the AF improved then I dropped the oil.
During this time I also took sits baths of magnesium salts. At first warm then later cold (this was a little uncomfortable but seemed to help more in the long run. They say cold is best for injuries so I thought I would try it).I also never used toilet paper or soap on that area, I would use the hand sprayer from the shower to clean up.
It is very important that I remained consistent with all of the above items or I would see a reversal of progress.
After months of being at 90% healed I tried praying twice a day to heal it completely, within a month it was completely healed. I know some of you will not believe me and that okay, I am just sharing what worked for me.
It has been about two months now since the pain left. I no longer use the Tenactin but I still use the Mira Lax, magnesium and fiber just to make sure I do not re-injure the fissure and give it plenty of time to heal. I will eventually wean off of everything but the fiber.