A little cold is related to the lowering of immunity, which can be treated through good living habits, prevention and medication. 1. Adopt good living habits: usually pay attention to the diet is reasonable and nutritious, eat more protein-rich food, maintain sufficient sleep, appropriate physical exercise, is conducive to enhance the body’s resistance. 2. Prevention: do a good job of keeping warm, appropriate increase or decrease in clothing, to avoid catching cold, try to reduce the number of people to go to places with high traffic during the influenza, you can wear a good mask when you go out and do a good job of self-protection, indoor windows are often opened to ventilate the room, to keep the air clean and moist. 3. medication; often recurring colds, can be used under the guidance of the physician is conducive to strengthening the immune system of drugs, such as vitamin C, vitamin B2, and so on. If you have a cold, you can go to the hospital and get treatment under the guidance of a physician, and strictly follow the doctor’s instructions.