I have been a heavy toker for 2 years now and I am starting to break out into hives when I smoke. Actually, the hives can appear during smoking or if I am just handling weed. The hives only show up in localized areas and it's usually on one side of my neck. I can't believe that it's an allergy after so long and b/c it is only in one area. I think it may be related to anxiety, but it only happens when I smoke. I know that quitting is the option if it's an allergy, but does anyone have another suggestion? Anyone else breaking out into hives?