Eczema is an allergic disease and is not contagious. Treatment varies according to the condition, and the principles of treatment are to remove the causative factors, anti-allergy, anti-inflammatory, anti-itch, and select appropriate topical medication for symptomatic treatment. Eczema is an allergic disease caused by a combination of internal and external factors, there is no eczema caused by a single pathogen for the time being, so eczema is not contagious. A small branch of the disease, called infectious eczema-like dermatitis, refers to peripheral eczema-like changes secondary to trauma to the skin and refers to self-contagion, not contagious between people, or between people and other organisms. Because the causes of eczema are complex, and each has its own characteristics and varies greatly, treatment is based on symptomatic treatment, and if a causative agent can be found, the cause should be actively removed. Symptomatic treatment, such as oral anti-allergy drugs, cetirizine tablets or loratadine tablets, oral vitamin C or compound glycyrrhetinic acid tablets to improve vascular permeability, anti-inflammatory, according to the rash pattern to choose the appropriate topical drugs, furnace glycolic lotion, dinaide cream, etc. are included in this list. Eczema patients should pay attention to finding internal and external causes, in addition to ensuring good rest and emotions, life, scratching, soap washing, hot water, drinking alcohol, spicy, can aggravate the lesions, should pay attention to the details of life, to help the early healing of the disease.