If you have a cold with diarrhea, this may be a gastrointestinal type of cold. Generally, diarrhea is caused by gastrointestinal dysfunction caused by a viral infection. The diarrhea will get better after the cold gets better. You can take some Crypto, which works well. If the diarrhea is serious, take haloperidol and be hydrated with more light salt water or sugar water. If the water loss is serious, go to the hospital for infusion to replenish. For the last few days, keep the diet light, avoid spicy and greasy food, you can eat some liquid and easy to digest food. The diet should be regular, regular and quantitative, and avoid overeating to reduce the burden on the stomach and intestines. You can drink more rice porridge, rice soup, noodles, egg soup, etc. You should drink more water and eat more fruits and vegetables.