After the cold, vomiting and diarrhea can use the following methods to treat and relieve the symptoms: local hot compresses, attention to rehydration, medication and so on. 1. local hot compresses: the symptoms of vomiting and diarrhea after being cold, often due to the gastrointestinal tract is stimulated by cold, so that the gastrointestinal tract spasm, peristalsis caused by too fast, you can use a hot towel in the navel around the local hot compresses, to alleviate the gastrointestinal tract by the adverse stimuli, and then relieve the discomfort symptoms. 2. Attention to rehydration: If vomiting and diarrhea are too frequent, it may lead to dehydration, electrolyte disorders, so we should pay attention to timely rehydration, oral rehydration salts, the symptoms are serious, we should consult a doctor in a timely manner, under the guidance of the doctor for fluid supplementation, such as intravenous infusion of dextrose, sodium chloride injection, cotrimoxazole, sodium chloride injection and so on. 3. Drug therapy: you can take appropriate anti-emetic and anti-diarrhea drugs to relieve the patient’s discomfort, such as domperidone, montelukast, etc.. You can also take gastric mucous membrane protector to prevent the gastric mucous membrane from being damaged due to frequent vomiting, such as magnesium aluminum carbonate, bismuth potassium citrate and so on. If combined with infection, you can also take oral or intravenous infusion of antibiotic drugs, such as cefradine, norfloxacin and so on. Drugs must be used under the guidance of clinicians to avoid adverse reactions.