If hair loss is obvious after hair dyeing, it is usually caused by the stimulation of hair follicles by the chemical ingredients contained in the hair dye. It is necessary to control the triggering factors in time, and if hair loss persists, it is necessary to consult a doctor to relieve the hair loss through medication or its method of treatment. 1, remove the trigger: patients may be allergic to hair dye, do not dye hair again in the near future, and after dyeing hair in a timely and serious shampoo to clean up the hair, and try to cut the hair short, and good hair care, do not use the hair dryer high temperature straight blowing hair; 2, drug treatment: patients can consult the dermatology department, oral prednisone for treatment as prescribed by the doctor, but can not be taken for a long time, so as not to cause side reactions, but also local External rubbing 8-methoxypsoralen ointment or tincture, minoxidil tincture, dithranol ointment and other drugs to promote hair regeneration. In addition, Chinese herbal medicine can be applied to nourish the kidney and blood. Common herbal medicines include He Shou Wu, Shu Di Huang, Bai Shao, Dan Shen, etc., which need to be treated according to the patient’s comprehensive situation; 3. Local treatment: strong corticosteroid ointment can be applied topically or local multi-point injection of trenbolone. In addition to the above treatment methods, patients should also pay attention to daily care, keep a happy mood, avoid mental anxiety due to hair loss, and moderate consumption of black sesame, black beans and other foods, are conducive to alleviate the symptoms of hair loss after hair dye.