I said it in the other thread and I have to say it again, i believe the reason my DD2 has severe allergies is because I was given the flu vaccine whilst pregnant. I have read up on it and there is an ingredient (thermisol) that is linked with allergies/asthma/autism/adhd which is in flu vaccines. Not sure about swine flu vaccine though. but from my research I am convinced this is the reason. So definitely read up on it.