Dieting hair loss should first clarify the cause of the disease, and then for the cause of the treatment. If it is caused by dieting, it can be recovered through dietary adjustment and maintaining a good mindset, while if it is caused by disease factors, it should be treated with medication under the guidance of a doctor. 1. Diet adjustment: dieting is an unhealthy way to lose weight, when dieting to lose weight after hair loss need to consider restoring the normal diet, supplement corn, rice and other foods rich in carbohydrates, chicken, fish and other protein-rich foods, as well as a variety of fresh vegetables, fruits and other foods rich in vitamins, dietary fiber. 2. Maintain a good state of mind: dieting process may be too much psychological pressure, this time need to adjust the individual’s mood, maintain a good state of mind will also help to alleviate the symptoms of hair loss. 3. Treatment with medication: It may also be combined with other disease factors, which need to be treated with medication according to different diseases. Pemphigus vulgaris is a psychogenic, autoimmune-associated, non-scarring hair loss disease that can occur on any part of the body. Most cases of baldness resolve spontaneously within 6 to 12 months. The use of 2% or 5% minoxidil solution can also be prescribed to improve local blood circulation and promote hair growth, and new hairs can be seen in 2 to 3 months. Androgenetic alopecia common topical drug minoxidil is an effective topical hair growth drugs, generally recommended for men 5% concentration, recommended for women 2% concentration, the common adverse effects of contact dermatitis and hirsutism, it is recommended to follow the doctor’s instructions for the use of drugs. Dieting patients with hair loss symptoms that cannot be relieved after dietary and emotional adjustments are recommended to go to the hospital.