Eczema is an inflammation of the superficial dermis and epidermis caused by a variety of internal and external factors. There are no absolute dietary contraindications for eczema patients, except for alcohol. Eczema is an allergic disease with multifactorial effects. There are many causes of allergy, diet is only one of them, but also includes contacts, living environment, airborne dust, pollen, and even ultraviolet light, clothing, and work habits. If necessary, skin allergens can be monitored and programs such as food intolerance tests can be performed to further clarify the allergenic causes that may trigger eczema. However, alcohol has a vasodilating effect and can aggravate all types of eczema, and in the same way spicy and irritating foods should be actively avoided. Also, because the body is hypersensitive during eczema, it is more likely to be allergic to foods rich in xenobiotics, such as seafood, fish, shrimp and crab, and beef and mutton are also foods that can easily cause allergies. Generally, milk is less likely to cause allergies. In addition, the relationship between diet and rash should be observed more during eczema. If you find that the rash is significantly aggravated after eating a certain food and repeatedly verified more than 2 times, you can be considered allergic to that food and should be actively avoided. In summary, there are no strict contraindications or safe areas in the dietary spectrum of eczema patients, but the overall focus is on light and easy to digest, avoiding spicy and stimulating foods, abstaining from alcohol, cautiously eating seafood and fish and shrimp, and actively treating the original disease.