Neurodermatitis, also known as chronic simple lichen, is a common chronic inflammatory skin disorder characterized by episodic intense itching and lichenification. The causes may be related to various internal and external factors, including neuropsychiatric factors, gastrointestinal dysfunction, endocrine disorders, diet, and local irritation. Clinically, treatment involves the careful selection of topical medications based on the characteristics, location, and type of skin lesions. Common topical medications include corticosteroid ointments, tar ointments, and moisturizing anti-itch ointments. Folk remedies often use garlic to treat neurodermatitis. In traditional Chinese medicine, garlic is known for its insecticidal and itch-relieving properties, but it is quite irritating. Intense irritation on the skin can cause redness, blisters, swelling, and itching, leading to allergic dermatitis. Therefore, it is not recommended to use garlic for treating neurodermatitis.