Aren't they exactly the same?? I had an appointment at my endocrinologist yesterday and as I was in the waiting room, I was eavesdropping on the receptionists' conversation. One of them has a daughter who recently had some kind of reaction from the flu shot. So apparently the remedy to this is to get her the mist next year. SMH. Don't they have the exact same ingredients?? Why would you think she wouldn't have a reaction to the SAME ingredients just because you administer them through a different part of the body?