Welcome to the Forum! Glad that you found us.
Just wanted to ask you if you have tried any of the medications that are given for those with their fissure still in the early phases? Fissures, for their size, can be excruitating, as you have probably read on here, all due to the wretched spasms. A lot of people have had LIS who were on here and moved on with their lives and never been back (this you can tell by the number of members and those active).
I have not had LIS, having had so much surgery to the area previously. It does have a very good percentage for healing whereas Botox - to me - sounds very hit and miss. Hopefully someone will come along who has had the surgery and advise you from their experiences, as I am only going by those no longer members here who have had the surgery, been happy with it and moved on.
My number one suggestion: make sure it is done by a colorectal surgeon (CRS), and one who does this on a regular basis - and don't be shy to ask how many he/she has done.
Once again,
to the forum and good luck.