Allergies cannot be eliminated, but they can be prevented by avoiding contact with allergens, paying attention to diet, and enhancing exercise to minimize the appearance of allergy symptoms. 1. Avoid contact with allergens: people with allergies are easily allergic to allergens, so they need to find their own allergens, and after clarifying which substances they are allergic to, they need to avoid such allergens in their future lives. 2. Pay attention to diet: allergic body daily need to pay attention to light, nutritious, balanced diet, every day to ensure that the intake of fresh vegetables, fruits, eggs, dairy, meat, fish and other foods, less spicy and stimulating food, do not picky, do not favoritism. 3. Enhanced exercise: allergic body daily need to strengthen the nutrition, daily exercise for a certain period of time, such as jogging, jumping rope, swimming, playing ball and so on, to enhance the physical condition. If you are allergic to the body to pay attention to prevention, when the allergy is more serious need to go to the hospital immediately.