A specific type of upper respiratory tract infection that is most commonly seen clinically is the gastrointestinal cold. It is usually caused by a viral infection, but sometimes it can be followed by a bacterial infection. Diarrhea, nausea, vomiting, and even high fever and dehydration may occur. It is important to review the routine blood and stool tests, monitor the patient’s symptoms and temperature changes. According to the test results, to clarify the cause, you can take a little probiotics, such as Bifidobacterium tetrasporium tablets, as well as spleen strengthening oral solution, vitamin B complex, etc., and do not eat a high protein diet for the time being. According to the test results, feel free to review and adjust the treatment plan.