Eczema specific preventive measures are as follows: 1, keep a happy mood, life should be regular, pay attention to the combination of work and rest; 2, the diet should be light and nutritious, avoid seafood hair and fishy food, such as wine, mutton, smoke, fish, shrimp and other foods. Keep your bowels open and get enough sleep; 3, dress loosely to reduce friction and stimulation, do not make chemical fiber and woolen fabrics directly contact the skin; 4, allergic body or allergic family history, to avoid all kinds of external stimuli, such as hot water scalding, sun exposure, scratching, etc., as far as possible to avoid allergic and irritating food; 5, maintain good hygiene habits, change clothes regularly to keep the skin clean, avoid using hot water, soap and other irritating substances. Avoid washing the affected area with hot water, soap and other irritating detergents, try to avoid scratching the affected area with fingers, and maintain emotional stability, do not be anxious, depressed.