I found that I was having some reaction to having my hair colored, so I tried an experiment and switched to highlighting or weaving, where the stylist applies color to sections of my hair, on foil with a brush, and then folds the foil over while it sets. I have a much better time that way.
It doesn't cover my whole head, but the smell is much reduced, the dye barely touches my skin at all, just a couple of tiny drops here and there, and I am much happier. My stylist is so good now that she is extra careful with me and the last couple of times she hasn't gotten any on my skin at all. I also find that I can experiment with colors and give myself a "pick me up" when I am feeling down.
"If you think you can, you can. If you think you can't, you're right". - Mary Kay Ash