Patients with alopecia areata can be treated with minoxidil daubing, once a day 1~2 times 1 ml, and massage by hand for 3~5 minutes from the center of the affected area, with the total daily amount not exceeding 2 ml. This medicine can dilate blood vessels and stimulate the hair growth of alopecia areata patients. It should be used after the scalp and hair are completely dry. This medicine has quick effect, can relieve alopecia symptoms, promote hair regeneration, and has few side effects. If you have an allergic reaction to drugs, stop taking them in time. The sooner patients with alopecia areata are treated, the better the effect will be. If the treatment is not timely, the range of alopecia areata will be further expanded and the recovery will be slow.