I looked around, but couldn't find any discussion of the real purpose of nitro. I just got a tube of it, but over the passed couple weeks my spasms have disintegrated and my pain is gone during BMs. I still definitely have a fissure, blood, stupid skin tags, etc. but it looks like nitro is for the spasms.
I just wonder, do I need to use it if I don't have spasms and pain; does it effectively contribute to healing? I'm not sure the potential headaches are worth it if it's for the spasms.
Thanks to anyone who knows!