Why does my nose turn red and itchy when chewing gum?

Well the most common ingredient there for allergies is soy lecithin if your nose just gets itchy then I'd take some Benadryl which can make you tired if you take too much. If you have any life threatening symptoms like itchy throat and trouble breathing the you could be going into anaphlayxic shock which can kill you, so to treat that you would need an Epi-pen. Maybe you should go get tested at the doctors fro an allergy or just tell him/her you are having these symptoms when you chew gum and maybe show him/her the gum package so he or she can tell you just in case I'm wrong. Hope I helped! Bye!