The immune system can be regulated through dietary conditioning, exercise and medication. 1. Dietary regulation: you should develop good habits, mainly light diet, more vitamin- and protein-rich foods, such as spinach, apples, beef, eggs, etc., avoid spicy, stimulating, deep-fried food, to ensure nutritional balance in the body, to a certain extent, can alleviate the symptoms. 2. Exercise: You should actively exercise, such as running, walking, swimming and other sports, which can promote the body’s metabolism and regulate the immune system disorders. 3. Drug therapy: If the body’s immunity is poor, you can follow the doctor’s instructions to use pidomod oral solution, thymidine enteric-coated capsules, transfer factor capsules and other drugs for treatment. It is recommended that the use of drugs under the guidance of a professional doctor, not blindly use or change the dosage without authorization, to avoid adverse effects on the body.