And carry an Epi-Pen, and know how to use it, and tell your riding buddies about it, if you don't already.
I had a reaction to a bee sting 33 years ago and I've carried an anaphylaxis kit ever since. Never had to use it. But I make sure that the kit isn't expired, I keep one in my seat pack on my bike and one in my purse that goes with me everywhere else. It's just a stupid thing to die of, for want of a $50 prescription (that your insurance may reimburse).
A phone and the "buddy system" are definitely important, but if you go into anaphylactic shock, you only have about 5 minutes to get epinephrine.
Speed comes from what you put behind you. - Judi Ketteler