i had an anal fissure for some time (6 weeks) and it was also unbearable. opiods didn't help at all. the drs told me something about them not working in that part of the body. hot baths several times a day. they wanted me to insert some cream up there using my pinky, which just make the pain worse by re-aggravating the area. I'm still not sure how it eventually healed, but I really started to understand why people in chronic pain would consider suicide.