Im sorry to be the bearer of bad news and I am only speaking from my own experience but it took me 10 weeks on the diet before I started feeling better, Im 80% there now and I dont cheat, I quess if you have been ill for some time it doesnt disapear overnight. I have to take a piriton everyday at the moment for hay fever so I shouldnt think it would hurt as long as there is no sugar in it.
I have had over 60 symptoms in the past 10 months and when i started the diet i felt worse for a while but I knew it was the die off so I stuck with it. Learning patience isnt my strong point but Ive had to with this treatment. You are on the right path now and its an hard one but you can do it,