Traveling by Plane: Epi

Epi-pen Jr. in an Airport (And Some Liquid Questions)

My 19 month old son has a food allergy and we must carry an epi-pen jr. around with us at all times. Is there any special consideration we have to take when traveling by plane? I can see security claiming that it is a weapon or something like that since there is a needle, but at the same time, it is a rescue medication that is required to be with my son at all times. Also, because my son's food allergy, he usually cannot eat food out. I will be packing him some of his favorites since we will be traveling for breakfast and lunch. Is...