Just wondering, I have .2% Lidocaine & .3% Nifedipine, that I've been applying for 3 days now, about 3 times a day. Both bottles say for external use only. I think most of my so-called fissure is on outside, but if it extends just inside the anus a bit, will external application of the creams be absorbed enough to promote healing? Since the instructions say external, for now, I'm not going to attempt to apply them inside, since I wouldn't want to make any unecessary waves.
My pain isn't terrible thankfully, and is ONLY present during a BM, specifically when the stool first comes out, then I have lingering sharp twinges there for a minute or two, then pain-free. Occasionally if I contract my sphincter, I feel a tiny bit of irritation there, but luckily I'm pain free mostly, other than BM, and on scale of 1-10, that's tolerable, about a 5-6. But I still am getting tired of it, want to be totally pain-free down there. Maybe I just need to be more patient & wait longer for the creams to work. That's how it's been for me for the last 5 weeks or so. I have two skin tags, the pain area seems to be on the right one. I got some B6 Vitamin & Zinc tablets, hoping they might help too. Maybe not, but worth a try. I'm wondering if applying the creams on just the outside, will still allow them to be fully absorbed into the affected area, and promote healing?

Also, I had asked about Nifedipine, does it actually promote healing in the area, or just relax the muscles there? I've always been a quick healer, so I'm hoping this will go away soon.

Hi Alex,
Some people say apply it inside, some say outside only is enough. I tried applying it inside, and after a while I decided I was doing more harm than good, and only applied it outside. Nifedipine is supposed to be well absorbed into the blood stream.

The muscle relaxant effect is supposed to promote healing by 1) stopping harmful spasms (it doesn't sound as though you have spasms though) and 2) improving blood supply to the anus.