1.Eat less and eat more, do not overeat. Avoid spicy, tobacco and alcohol; 2. Replenish sufficient water, drink about 2500ml of water every day, avoid coffee, strong tea and other excitatory drinks; 3. Properly control high-fiber foods, especially when diarrhea; 4. Pay attention to the reasonable combination of nutrients; 5. Forbid foods with high iodine content such as seaweed, sea fish and sea jelly skin. Since iodine is very volatile in the air or after being heated, iodized salt can be used by simply placing it in the air or heating it slightly; 6. Eat foods rich in potassium and calcium; 7. Properly control the diet after the condition is alleviated.