Dermatitis, including eczema, is a relatively common clinical allergic skin disease that is associated with contact allergies or food allergies. Patients with dermatitis should not drink alcohol because it is irritating and can lead to aggravation or recurrence of dermatitis after drinking alcohol. In addition to not drinking alcohol, it is also important to avoid spicy and stimulating foods, and not to eat fish, shrimp and other hair products. Patients should also avoid scratching, washing and scalding with hot water, or scrubbing the skin with alcohol, vinegar, salt water, etc. Patients with dermatitis should also pay attention to rest and not stay up late, as immune dysfunction can also lead to recurrence or aggravation of dermatitis. Mild cases can be treated with topical anti-inflammatory medications, such as Denide cream, and more serious patients can be treated orally with a combination of antihistamines.