If you have skin issues like seborreic dermatitis, rosace, maybe a TNF biologic will help you ( if you should get one for Crohns or UC)……last time when I delayed Remicade for a month I had those nasty scales again beyond my ears, in my brows etc…..the day after the infusion they were dissapearing, in 2 days they were all gone……maybe its just a coincidence?…..maybe some of those skin disorders are sort of autoinmune reactions, in this case your inmune system reacting to your skin….not your gut….???