This must be the 4th or 5th summer that this happens. The first time years ago there were a lot of people complaining about this and we all kinda surmised it was from fire retardant from a mountain fire, but this is ridiculous. I've tried everything to calm it down but the only thing that seems to help is an ice pack worn strapped around my arm. Someone has mentioned antihistamines but I'm sick of taking so many supplements. Anyone else have this problem?