I'm new to this and vowed that once I had gotten past my experience of passing glass that I would share what worked for me and what didn't work.
I randomly got an anal fissure out of nowhere and I'm 20 years old so I was surprised to be having issues in that department

I then read somewhere around that someone had used sudocrem on their fissure. I had thought about it before but read on the side of the tub that it was for external use only so I disregarded it. But I then gave it a go (what did I have to lose at this point) and it worked wonders. There was no irritation or anything, so don't be afraid to push it right in there (TMI)! I put some on after a bowel movement or just a few times a day and some overnight and within 3/4 days I was healed completely. To make sure it didn't reopen the fissure, I actually tried to hold off from doing a BM for about 2/3 days, which actually worked but was hard! I strongly recommend it; it seems from reading around that doctors don't really know what to prescribe, so take matters into your own hands. I spent about Ј30 on foolishness when I had the cure lying around my house the whole time! Give it a go and you will more than likely feel about 20% healed overnight.
Sorry it's so long, Good luck! x