I now use Revlon Colorsilk color 20 (brown black). It seems I've developed an allergy to it, with itching and burning. I last colored my hair about 2 1/2 weeks ago. I usually color it about every 3 weeks because my roots are silver grey. Should I get 1 black and 1 dark brown and mix them. My head is still itching a little from the last time I colored.
