There are many reasons for coughing after eating cold food, commonly found in pharyngitis, gastroesophageal reflux disease, allergic cough and so on. 1. Pharyngitis: When the throat is too sensitive, it is easy to be irritated by cold food, which can trigger an irritating cough. 2. Gastroesophageal Reflux Disease (GERD): Consumption of cold food is also a stimulus to the human body, which can lead to an attack of gastroesophageal reflux (GERD), thus causing a cough. 3. Allergic cough: The cold air brought by cold food can easily cause airway irritation and irritating dry cough. There are many reasons for coughing after eating cold things, and it is recommended that patients go to the hospital in time to find out the cause, and under the guidance of the doctor for treatment.