Seborrheic alopecia can be cured. This kind of hair loss is mainly secondary to seborrheic dermatitis. It is mainly due to many factors such as poor rest and lack of sleep, which lead to local scalp infection with some oval pityrosporum. This fungus disrupts the hair growth cycle inside the hair follicles, causing hair loss. You can choose to use oral vitamins b1, b6, and b12 to nourish the nerves and at the same time use topical ketoconazole lotion to kill Pityrosporum pityrosporum. Then apply minoxidil liniment externally to increase hair growth and improve hair loss symptoms.