Yeah, I started my SI by bashing my head and face with my fists and hard objects (usually the phone) and would end up with bad bruises, cuts, sweling and black eyes. I still do it, but unfortunately, I starting stabbing and cutting about five years ago. None of it is good and only provides relief for a relatively short amount of time. Why do you ask? Are you doing it? Are you doing other things to SI? I don't have any answers, but please PM me anytime. We need to talk about this stuff with people who understand and maybe together we can help each other find another way.
Take good care of yourself, please.
Peace,
Jennifer