1, allergic people in the daily diet should pay attention to gray vegetables, bamboo lice, amaranth, purple clouds, mud snail, cabbage, amaranth, shepherd’s purse, turnip leaves, rape, beets, marjoram, spinach, horsetail, lettuce, buckwheat, acacia, elm leaves, fungus, figs and other vegetables, and fresh mango. 2, Chinese herbal medicines such as antiphlogistic, thornbush, saxifrage, dolichospermum, cumin, dahurica, dahurica, bone marrow, rue, etc. should also be noted. 3, people who work outdoors for a long time should pay attention to sun protection, more should avoid exposure to the sun, when going out should apply sunscreen, hold an umbrella, wear a wide-brimmed hat, wear long-sleeved clothing. 4, keep the skin clean and dry, try to avoid smoke sprinkles, strong tea, spicy and other irritating food.