The advice of your physician was to discontinue coloring your hair. Perhaps take your physician information about EcoColors and get their advice. Perhaps getting their permission to try an allergy test according to the directions in the kit. We recommend doing an allergy test three weeks before each application to determine if you will react because some allergies develop over time with repeated exposures . Changes in hair and skin sensitivities can also indicate metabolic changes and may be warnings towards hormonal imbalances or other systems out of balance in the body . Finding an integrative physician or a naturopathic doctor working with an integrative M.D. May be a good step in getting your body back in balance.