It maybe more helpful to you if you were to look at "allergies" as a fungus problem; the thought behind allergies no longer exists because it is based upon the idea of bacteria.
The elimination of certain foods, I think, is helpful only when the fungus problem is dealt with on a systemic level. Eating fungus-type foods only helps fuel the problem. If those people were given a systemic anti-fungal along with eliminating certain foods the concept makes sense in this regard.
I know you're trying the MMS, have you tried the Garlic protocol? I have something in one of my books that you could try out.