Scabs on the scalp after bleaching hair, considering contact dermatitis, folliculitis and other causes, need to be analyzed according to the symptoms.
1. contact dermatitis: most of the bleaching agent on the skin will have a certain degree of stimulation, if the skin is allergic to the ingredients in the bleaching agent, after bleaching hair will occur allergic dermatitis, pimples and papules, serious blisters, blisters will be broken after the scalp will have vesicles and scabs.
2. Folliculitis: hair bleaching agent can cause damage to the skin folliculitis, mainly manifested in the follicle as the center of the red pimples, part of the folliculitis will have white pustules, pustules are particularly easy to rupture, and then will also be stagnant scalp scabs.
Bleaching hair scalp scabs may also be other reasons, it is recommended to consult a doctor in a timely manner to clarify the cause after standardized treatment.