For fissures, I went to my doctor and they “sealed up” the fissures with a sort of purple type super glue. It was painful, but it helped in the following days. I was prescribed a prescription cream, but I don’t remember the name of it but it did help.
Stress is directly associated with pouchitis and many other diseases. I’ve been told that time and time again by my surgeon and doctors. I live in Minnesota, which is prime for healthcare in the US, so I tend to believe them about the Direct effect of stress.