As I am now healed of my chronic fissure after 2.5 years, I thought it may be helpful for people now (or in the future) if I just summarise the main things and any learnings from it.
1) 2004 - severe anal pain and bleeding with and after BM over several months. Medical treatment prescribed by GP not effective plus headaches. Referred in agony to a good CRS – sent straight to hospital with a chronic fissure and botoxed the same day (December 2004). Took at least 10 weeks to heal.
2) 2007 – over a period of at least 9 months intermittent bleeding and pain with BM. Referred to the above CRS who did colonoscopy and haemorrhoid banding. Took several months for pain to ease after banding.
3) Late 2007 – early 2008 some weeks after banding, a bad case of constipation followed by bleeding (I will never force it out again!). Self-diagnosed with fissure. Based on advice from a friend applied Amoils (organic oils available over the internet) internally on a cotton bud for about 5 months. Also saw GP who advised Lactulose as Metamucil seemed ineffective.
4) August 2008 – referred again to the above CRS who diagnosed a chronic fissure and did the first LIS. After several weeks of pain developed a haematoma. Continued to have fissure pain after surgery healed.
5) February 2009 – because first LIS (which was done conservatively) clearly unsuccessful, the CRS did a second one. After about 3 weeks some minor incontinence for a couple of weeks – air and small solids (just 2x). Definitely felt this surgery resulted in a more relaxed sphincter muscle.
6) Around May 2009. As second LIS unsuccessful to that time, started applying 0.2% nifedipine. No side effects and seemed to make sphincter muscle more relaxed. Also went from Lactulose to Miralax - much better! But still almost constant pain throughout the day. To this point I had needed to take 55 days sick leave since problem first arose because of the pain.
7) The CRS said my fissure was the worst he had seen and he could not help me any further as thought too dangerous to do further surgery - so referred me to one of the best CRSs in the country (Australia). This CRS spent several months carrying out tests before deciding the next step. He saw three options initially - another LIS, anal flap surgery or nothing. Also increased nifedipine to 0.5%. He (as did the previous CRS) ruled out the common reasons why LIS didn't work eg Crohns. Two important tests he performed were an ultrasound (to see what impact the previous 2x LIS had on the sphincter muscle - no damage showed up) and manometry (to see if the sphincter muscle was above average tightness and hence preventing good blood and oxygen circulation for healing - results along the length of the canal showed well above average pressures).

9) Just a comment on the surgeries - I never needed pain killers after any of them (except a panadol one night to help me sleep) and the first BM on about the second or third day with each, while it hurt, was nowhere near as painful as the fissure in its glory days. Surgery is not as bad as we might fear, especially if done by a good CRS.
10) Saw CRS end-January 2010 - said healed.
11) January to April 2010 - ongoing pain which just felt like fissure pain so went and saw CRS again in April - did an anuscope and said fissure definitely healed as were the cuts (besides the LIS he removed two skin tags associated with the fissure) and there was no significant scar tissue. But said I had some minor leakage (not enough to soil underwear or be noticeable to me) and through the day this was irritating/burning the skin. Said to get BMs harder and better formed - this included changing my diet (I had been living on soup and fruit with cereals for breakfast and sandwich for lunch) to decrease the very high levels of fibre I was having, and also cutting out miralax completely and applying zinc oxide 3x a day. Did these changes (diet and miralax gradually) and pain has virtually gone! Yesterday was totally pain free - first time in 2.5 years! Since surgery in December my BMs (1x per day) just takes 10 seconds regardless of size. Am now eating whatever I want except for avoiding junk feed, cheese and chillies / hot curries.
Some of my learnings (but noting we are each unique):
1) Never force a BM!!!!!!
2) Make sure a good diet with fibre and plenty of water.
3) Metamucil often made things worse. Miralax and benefibre complement each other really well and can modify to control the BM.
4) While healing keep BMs soft but not too bulked up by going to excess with fibre - only made it worse.
5) Great to have someone close to share your experiences (including how you are feeling) with. If that person is not around than this group is very good!
6) Only go to a good CRS (if one is available locally) - don't risk one you do not feel comfortable with or who is not extremely experienced with a good track record. I had to travel 150 km to see the second one - it was worth it.
7) Don't have a second or third LIS without an ultrasound and manometry as well as having had crohns etc ruled out. Some poeple will not be suitable for a subsequent LIS - eg they may have sphincter muscle damage from a previous event such as child birth and will be at very high risk of incontinence!

9) Don't waste time and money on products advertised on the web - stick with those things for which there is an evidence base.
10) God's grace is sufficient no matter what our circumstances - if only we look to Him.
Thats all I can think of at the moment. I really feel for those that have had surgery and still not healed - the roller coaster ride is tough! Juney, I'm thinking particularly of you here - trust you experience major relief and healing in the future.
Charles