The allergy testing is a great idea but unless your going to a private Paed for the allergy testing i'd hate to say it i don't like your chances of getting in before x-mas.
DD2 took a couple of months on the waiting list and we only got a spot cos i happened to call right as someone cancelled, the waiting lists for kids OVER 1yr old can be well over 6 - 12mths.
Hoping it's not serious and that you can get some answers ASAP.. we too have to carry an epi-pen for DD2, she has a dairy allergy and was borderline for nuts & egg :wall: it's hard but if you can just watch exactly what ppl give her for now you shoudl be ok.