This is all about my own experience, but perhaps others can relate to some of it.
In general for the past three years, after some initial months of stress and panic, I've attempted to live with my fissure(s), not always sure of what's really going on down there. I have seen several CRS, and I have a GP who is quite difficult to see (there's a 4-week waiting period), though she has spoken to me by telephone several times, and is willing to prescribe medications - Laxido (Miralax), lactulose, GTN ointment and pregabalin (200 mg per day). Her attitude is that these should be sufficient to see me through on a day-to-day basis, and in general that seems to be true - life is not exactly comfortable, but I can manage from one day to the next without too much pain. BMs are fairly normal, if slightly loose. The pain and discomfort are there, though, especially at night, when I have BMs I wish could wait until morning, and often I don't get enough sleep. Also, from time to time I have flare-ups, and then, like today, I'm confronted by a sharp inflammation and sore spot in my rectum that doesn't seem to have any immediate cause. I haven't had Botox or LIS, have been trying to avoid them - I live alone, don't have backup from relatives or friends, and am uncertain that I could manage the recovery periods involved. Also have a (probably irrational) fear that surgery might only make things worse. I see a psychotherapist once a week, and find that helps with my anxiety.
The end result of all this seems to be that the best plan for me is to soldier on, manage the pain with pregabalin, keep using the GTN, treat the anxiety, and hope that in time the physical symptoms - the inflammation, the redness, the pain, the swelling - will fade and my life will return to normal.
Should add that for the most part I'm able to lead a fairly normal life for a 72-year-old male, can drive, visit stores for shopping, socialise a little, read, write, watch TV, get out and exercise a bit, and so on. It's just that ever present in the background is this strange, invisible complaint, a discomfort and nagging unease I have to drag around with me, something I never had in my earlier life.
David