LIS cut was gone in 2 days for me !!!
Having a fissure for a year makes it very hard to heal on its own. I was warned by my CRS not to wait too long since scar tissue starts forming. I had it for 5 months and I already had some scar tissue ! Not only that, but other CRS told me that scar tissue can make one incontinent !!!!!! That definitely helped me to make fast decision and have it done rather sooner than later.
Best of luck !