Coughing with sauerkraut can be caused by pharyngeal mucous membrane irritation caused by acid, aggravation of some diseases after eating sauerkraut, and allergic factors. 1. Pharyngeal mucous membrane irritation caused by acidic substances: some people have relatively sensitive pharynx, and the pharyngeal mucous membrane is irritated and causes related cough symptoms. This is a normal phenomenon, and it is recommended to reduce the consumption of similar foods. 2. Exacerbation of some diseases after consuming sauerkraut: Some people suffer from reflux esophagitis, with clinical manifestations such as cough, chest pain, gastrointestinal discomfort or pain, etc., and their pharyngeal mucosa as well as esophageal mucosa are damaged, and consuming sauerkraut will stimulate the above mentioned parts and aggravate the coughing symptoms. 3. Allergic factors: Some people are allergic to certain substances in sauerkraut, which can lead to allergy and symptoms such as coughing and rashes after eating sauerkraut. If the condition persists, it is recommended to go to the hospital for examination and further treatment.