I Am 72 Years Old And The Last Three Times

I am 72 years old and the last three times I coloured my hair I break out into a rash around my hairline and am so itchy over my entire body that lasts about 3 - 4 weeks. In those colouring times I have had it once done by a hairdresser, my daughter and myself, using all different brands of hair dye. What can I do. Thank you.