Nausea and vomiting after getting cold are considered to be gastrointestinal cold or acute gastritis. At this time, do not eat anything for the time being, you can empty your stomach, take a little bit of symptomatic drugs, such as a little bit of vitamin B complex and probiotics. You can also take Gastrodia tablets and Chinese medicine if you vomit a lot. For example, the spleen of the oral liquid, an ulcer capsule, these drugs can be taken. If necessary, you can test your blood for viral or bacterial infections and treat the symptoms. Pay attention to prevent ketoacidosis due to excessive vomiting, and test electrolytes and blood gas analysis as well as urine and stool if necessary. Adjustments can be made at any time according to the test results to clarify the diagnosis and treatment plan.