Yo bro..just FYI..its definately an allergic reaction. It MAY, and prob. will, get worse everytime now....its just like bee stings, you may not have reaction first few times, but your body on the inside is building up antigens, mast cells and basophiles, against, what ever it is that your body has decided to not like. So everytime it enters your body..these cells/antigens will attack it, and will start colsing off all routes for more to enter your body..such as hives/uticaria, its closing off the skin pores, swelling to eyes, swelling to lips/mouth, then the airway....USE extreme caution, because if you become anaflactic, only epi will work for you. Try eating 50mg Benadryl a day, and see if this helps....good luck...remember, if it strts to close your airway, you only have a few minutes......I see this everyday at work bro...bad stuff.
Anyways, use what you will with what I said.