I don't have Crohn's Disease, but I have burning sensations on the left side of my head. Mostly on my face and in my sinuses. They help trigger my migraines. I take Lyrica, which is in the Neurontin family. It has helped increadibly with the burning sensations, but I'm having some side affects that I'm on this site to check out. (feeling uneasy, stressed) I hope you find an answer, I know it's difficult...................Pat