I too have been dealing with this nightmare for the last 3 months. I've had 2 refills on the prescription compound ointment, which by the way has stained just about every lower half article of clothing I own. I was scheduled for botox procedure but decided to cancel it 2 days before procedure. Let me tell you why.
My biggest problem is slow to no heal, then once I think I'm getting somewhere, I think I retear them. I was told slow heal was mostly due to pelvic floor muscles being so tight that blood flow was restricted, not able to heal.
Try and follow me, I've had pelvic floor issues to the point that I'm unable to have intercourse at all(getting ready to start pf therapy), which also effects my anal region. I had full hysterectomy in 2018, when it all started but was not taking hormone replacement. I've since started, which to get to my point, is helping my pelvic floor and tissue health tremendously, hence, allowing more pelvic floor relaxation, to heal anal fissures finally on their own. No surgery needed. Hope that helps a little.