Are there any Jellies that have tree nut allergies? Do you carry an Epi-Pen?

I was just unpleasantly reminded of my allergy to brazil nuts. Apparently they are in regular granola bars now. My reaction was hives and vomiting within minutes. I just took a couple benadryl so I’ll be asleep shortly instead of enjoying the afternoon off. I have never had any reactions that I thought were serious but this has me wondering if it could possibly happen next time. Typically it is very small fragments that get ingested yet this is always enough for my stomach to empty its contents. Can a mild reaction one day be ER material on another occasion? Should I carry an Epi-Pen?