Havent seen this mentioned here yet. Witch Hazel has made things almost bearable for me.
I notice when I dont use it I am in more pain and when I do it helps a lot. The idea is to keep the wound clean and the trick is not to aggravate it when cleaning, so finding a balance is key, I guess it works kinda like a sitz bath.
When I was having hard BMs and the pain was on a scale of 7-8 almost feeling like I was gonna pass out I eventually realised a way to reduce the pain, get a few tissues and apply hard pressure down there, I dont know how that works but it did for me although it was annoying to do it was better than the excruciating pain.