I've been to 3 different derm's here in Brazil and all three knew ec, all three just said to don't worry about it. So I asked about a cure and all three said that there is no cure hahaha
After that I went to an allergist who said it is not an allergy (anyway I really believe it can be! maybe some kind of contact dermatits)
I did one endoscopy, culture swab and hundreds of blood tests, waste of time, about 20 doctors saw me.
It is nice that you found a doctor who is interested in help you to beat this... All doctors here don't give a...