Neurodermatitis, also known as chronic simple lichen, is a common type of chronic inflammatory skin disease characterized by paroxysmal severe itching and lichenoid changes in the skin due to neurofunctional dysfunction. Its causes may be related to various internal and external factors such as neuropsychiatric factors, gastrointestinal dysfunction, endocrine disorders, local skin irritation, and diet. After developing neurodermatitis, it is recommended that patients minimize alcohol consumption and intake of spicy, stimulating foods, seafood such as fish, shrimp, and crab, and meats like beef, lamb, and dog meat.