Alopecia areata often occurs mostly due to decreased immunity or eating spicy, irritating foods, foods with overly strong flavors, frequently staying up late, anxiety, tension, and bad moods. Once alopecia areata appears, it is necessary to seek formal treatment, avoid dyeing or perming hair, and avoid using irritating hair gels. It is advisable to maintain hair hygiene with clean water or warm water washing, in conjunction with formally prescribed oral and topical medications, and local medication occlusion treatment can also be coordinated. If the symptoms are severe, one may also visit a formal hospital to check if the hair follicles have atrophied or died. Avoiding spicy, irritating foods, enhancing exercise, and strengthening immunity can completely cure the condition.