Flu shots are not recommended if you have runny nose symptoms. The flu vaccine is given in winter and spring when the flu is prevalent to provide resistance to the disease. The presence of a runny nose in a patient indicates a recent poor health condition and a relatively low immunity, which does not easily stimulate the body to produce sufficient antibodies and affects the effectiveness of vaccination. In addition, the influenza vaccine itself is prepared from the influenza virus, and vaccination when the immunity is low will further aggravate the patient’s condition. It is necessary to suspend the vaccination and wait for a week after the symptoms of runny nose disappear before receiving the vaccination, in order for the influenza vaccine to play the preventive role it should have. After the symptoms of runny nose appear, you should drink more water, eat a light diet, eat fresh vegetables and fruits in moderation, and avoid spicy, irritating and greasy food. If the symptoms worsen and do not get better, you need to go to the internal medicine department for treatment under the guidance of a doctor.