If it is diffuse alopecia with scalp itching, you can choose to take vitamin B 1 and vitamin B6 orally. If the hair loss is upward from the forehead, the sideburns will also fall off. Consider male hair loss.
It is suggested to choose oral drugs that antagonize androgen, such as finasteride for men and spironolactone for women. All hair loss considerations have something to do with hair follicles. It is suggested to eat more black sesame seeds, walnuts and other foods, which will help hair follicles stabilize hair and prevent hair loss to some extent.