I too am looking into seeing some different doctors. Dermatologists clearly can't help so im wondering if we are just seeing the wrong people.
Because a lot of the research I have done indicates that when people have skin conditions/diseases it is often linked to our digestive system. But when I mentioned anything like this to the many dermatologists I've seen they just brush it to the side and say they don't think it's linked.
I also took Antibiotics for a few years before I got this and definitely think that has some link to EC.
I dont know anything about Crohn's disease but I know that I when I was considering taking Accutane, that was one of the main side effects which actually deterred me from doing Accutane. And I know many on here nothing they got this after Accutane.
Anyways keep us posted on the gastroenterology appointment. I plan to make one for myself.