The onset factors of neurodermatitis may be related to various factors such as neuropsychiatric factors, diet, local skin irritation, gastrointestinal dysfunction, and endocrine disorders. It tends to form a vicious cycle of itching, scratching, and more itching during the onset process. Therefore, the characteristic of this disease is that it progresses slowly, persists for a long time without healing or recurs repeatedly. Thus, neurodermic dermatitis can be cured, but it may also relapse.