This is not the majority of cases though. It is difficult to find anyone that claims their EC was cured from removing wheat or nickel out of their diet. You may be able to link an anecdotal case but the vast majority of people have tried food Elimination Diets and it has had no impact on their EC. I am one of these people.
I'm not sure why the subject of allergies has come into the thread as the OP made clear they have taken vast quantities of Antibiotics , and this has proven links to EC.
Please remember that in advocating these Elimination Diets you are piling on more emotional weight onto a person, where dealing with EC alone is bad enough. Some of my lowest points in having this condition have come from obsessing over food consumption and different food groups + having to look into the mirror everyday. It can drive a person crazy.
I think the first and best option for the OP at this present time is to leave them alone + moisture method for at least the first 6months.