Have you heard of organic hair dye? It's all natural ingredients.. I'm not sure if its the chemicals you're allergic to or the dye itself?
I was never allergic to cats until I got pregnant with my first daughter, then I became allergic. Until I got pregnant with this one. Now I can be around my cat without sneezing and watery eyes. It can happen, but I wouldn't count on it. Good luck!
OK thanks. I was really hoping lol
Personally I've not heard of anyone's allergies changing. Your body can change, but I don't know that it changes like that. The more common changes are hormonal ones, different bleeding patterns, GI problems (I had this happen) etc.
IDK if your allergy will change or not, I would be worried that it could make it worse...