There are reasons why doctors recommend drinking more warm water when you have a cold. 1, the cold itself will have the release of inflammatory mediators, drinking water can promote the dissipation of inflammatory mediators, for the treatment of the disease has a certain auxiliary therapeutic effect. 2, many patients with colds will have a fever, which may be complicated by gastrointestinal symptoms, the patient may have nausea, vomiting, diarrhea, etc., and poor appetite, which can cause patients to A large amount of fluid loss, so clinically give the patient to drink more warm water, can replenish the amount of fluid. Drinking more water for fever can play an auxiliary role in reducing fever, because the water consumed can take away a lot of heat. For patients with colds doctors may recommend drinking more water, if the patient’s heart and kidney function is normal, for the recovery of colds is a great help.