Colds and coughs are most afraid of spicy stimulation, powdered food, combined lung infection, etc.. 1. Spicy stimulation of food, can stimulate the mucous membrane in the throat area, resulting in cough aggravation; if the chili pepper stuck in the throat, can also cause frequent coughing, foreign body sensation between the throat, and so on. 2. Powdered food, can cause choking cough, in itself there are cold and cough under the premise of the underlying disease, can aggravate the cough performance, do not rule out the development of cough due to frequent coughing for cough variant asthma may be. 3. Combined lung infection, if the cold treatment is not timely, at the same time their own immunity is poor, the virus can cause lung infections caused by pneumonia and other diseases, slowing down the recovery process of the cold, the treatment is more difficult. Therefore, it is recommended to consult a doctor in time when the symptoms of cold and cough are serious, and pay attention to avoiding food.