This would sure be a nice one to cure altogether.  My 18yo son (only of 4 kids) has had a peanut allergy all his life.  When he was young, he would complain about certain things not tasting well, spit it out and that was that.  As he got older, it has become much worse when he does have an incident.  On his last though, about 2 weeks ago.  He'd eaten at Taco Time once again and immediately gone to play basketball just as he had when he had his last major episode about 18 months ago.  He came right home, dosed up on cherry flavor "Equate Children's Allergy Relief" fluid and jumped in the shower.  He indicated it felt major coming on as it was 18 months ago before getting into the shower so the combination of things kept him out of the hospital.  On an interesting side note, he's eaten at Taco Time on several occasions but it seems to be when he combines the physical exertion immediately after eating there, that creates issues for him.  Hope this helps others...