A cold, commonly referred to as an upper respiratory tract infection, often occurs due to a decrease in immune function, leading to symptoms such as nasal congestion and sneezing due to viruses entering the respiratory tract. Clinical symptoms like fever and cough are most common.

Some patients may also experience varying degrees of nausea, vomiting, and even loss of appetite. These symptoms are primarily considered to be caused by a gastrointestinal type of cold. Therefore, for such patients, it is first necessary to conduct relevant auxiliary examinations to determine if the symptoms are due to a viral gastrointestinal cold. Once confirmed, timely antiviral treatments and detoxification should be administered. Additionally, patients are advised to follow a bland diet, eat smaller, more frequent meals, and consume easily digestible foods. As long as the cold symptoms are effectively controlled, the symptoms of nausea and vomiting will also alleviate.