If you have to get hair color a lot (thanks, grays) and if you have really sensitive skin, it can be a recipe for a mega scalp disaster—complete with burning, itching, redness and flaking—every time you visit the salon.
the first step in stopping the cycle is to go to the salon with dirty, more-than-day-old (We recommends not washing for three-plus days prior) hair. The natural oils will help protect the sensitive skin on the scalp.
Likewise, holding off on a wash post-color can also be helpful.
If you go lighter, you should refrain from washing your hair for at least five days,Ask your colorist to use a hair-dye product that is made specifically for sensitive scalps.