Hey Fiss, yup I had it done in SF, same doctor you've seen before :) They just put on some lidocaine gel, the same stuff as before a rectal exam. I saw the needles and they were definitely big, but the injection itself only hurt for a few seconds on each side -- I was definitely expecting worse when I first saw the size of the needles hahaha. Honestly I think being bent over an exam table and raised high in the air so my butt was at "eye level" while two women stuck needles in my anus was embarrassing enough to overcome any pain there may have been LOL! The whole time I was thinking "wow this is definitely a weird experience" hahahahaha.
I don't have any problems with needles, I actually periodically get cortisone shots into my sternomanubrial joint for a chronic chest pain problem and that one is scarier to me since it's so close to my heart and they have to kind of grind the needle into the bone (feels weird), but the thought of getting a little muscle cut like with LIS definitely scares me
Dunno why when so many have done it before.