近几年来,染头发的人日益增多,但如果长期使用染发剂,对身体却有危害。染发剂含有氧化染料苯二胺,它可与头发中的蛋白质形成完全抗原,常常引起过敏性皮炎。轻者头皮红肿,刺痒灼痛,重者全部头皮、脖子、脸部都会发生肿胀、起水泡等病变。另一种含0.5～2%铅盐的乌发乳及酸性染料为基质的染发膏、染发油,如果长期使用对头发也会产生刺激,使毛囊慢性中毒,导致头发只 In recent years, the number of people who dye hair has been increasing, but if the hair dye is used for a long time, it is harmful to the body. The hair dye contains the oxidative dye phenylenediamine, which can form the complete antigen with the protein in the hair, often causing atopic dermatitis. Light scalp swelling, itching burning, heavy all scalp, neck, face will swollen, blisters and other lesions. Another 0.5 ~ 2% lead salts of black hair milk and acid dye-based hair cream, hair oil, if the long-term use will also stimulate the hair, hair follicles chronic poisoning, resulting in hair only