If the symptoms of a mild cold are not obvious, and the weather is suitable, and you have the habit of exercising in the past, you can run appropriately; however, if the symptoms of a cold are more obvious, and the weather is not good, or you do not have the habit of exercising in the past, it is not recommended to run. If you have a mild cold with only a runny nose and nasal congestion and other local symptoms, and the outdoor air is fresh, there is no haze, the temperature is suitable, and you have the habit of exercising, you can run appropriately, but you can’t overexert yourself, which will help you strengthen your body. However, we must do a good job of keeping warm, to avoid the body cold, aggravate the symptoms of cold, and not excessive exercise, so as not to consume too much energy, resulting in body fatigue and soreness. If the patient is accompanied by body aches and pains and head discomfort and fever and other symptoms, or no previous exercise habits, then it is not recommended to run. Running will consume energy and aggravate the symptoms, which may have a negative impact on the recovery of the disease. If you have a cold, you should rest more, don’t overwork, drink more water, eat more fresh fruits and vegetables, which is conducive to the recovery of the disease. If necessary, you need to use medication under the guidance of a doctor.