The treatment of cough after a cold is based on symptomatic cough suppressant treatment, diet to light, nutritional supplements, avoid eating spicy, stimulating food. Coughing after a cold is a common symptom, the treatment is symptomatic cough treatment, you can use dextromethorphan and other targeted cough medication, generally can be controlled. Diet, to light diet, such as porridge, fruits, vegetables, etc., to avoid eating spicy, stimulating foods such as chili peppers, etc., may lead to coughing symptoms aggravated. Focus on supplemental nutrition, eat more high-protein foods such as beef, eggs, etc., and drink more water to avoid dehydration due to fever.