Hi Sue
I'm in the UK too. My surgeon put me on diltiazem cream and when that didn't work suggested surgery straight away. We talked about Botox and he said the success rates are not as high as LIS so I opted for the op. I would've had to wait three months approx on the NHS but I went private. It was around Ј200 for an initial consultation, Ј100 for subsequent appts and then surgery fees after that around Ј1000. They kept me in over night which I was glad of because I'm prone to getting nervous. Fees might be less with no overnight stay. I was in so much pain I didnt feel like I could hold out for a few months, I also found it difficult to work etc so figured I'd be able to make up the cash if I was out of pain sooner. I had a bad experience with a previous CRS on the NHS and then my GP recommended a CRS she knew to be good. I'm in SW London and if you're around here let me know and I can give you the details of my surgeon.
Interestingly though when I went for second opinion about my fissure this CRS suggested botox fissurectomy as he didnt recommend LIS for women who may decide to have children via a natural birth or who have had children already. But he is in the minorty I believe with those opinions. He also said LIS will likely cure the fissure.
If by any chance you work for the public sector, charity etc you can join a very resonably priced private=ish healthcare provider and if the NHS wait time is very long they will do the surgery for you. Details are:
http://www.benenden.org.uk/ Wish you luck with getting the surgery done!