It seems to have become common knowledge that you should not only drink water, but also drink more water when you have a cold. But this is not necessarily true. When you have a cold, lack of appetite, fever, and sweating, you should drink the right amount of water to supplement. However, not all cold patients drink more water is good for their condition. When you have a severe cold or pneumonia, your body releases a lot of anti-diuretic hormone, a substance that retains water, and when you drink too much water, it can cause excess water, which can lead to hyponatremia, fatigue, and sometimes convulsions. So, what kind of drinking water is safe and beneficial when you have a cold? 1, should intermittently drink a small amount of water. Should intermittently drink water, should be the principle of day and night are evenly drink, do not drink several cups in an hour, and then several hours without drinking, the specific interval of their own estimates can be assigned, there is no too strict requirements. Be careful not to drink a lot of water at once. 2, a day of drinking water also adults should not exceed 2000 ml, children need to drink water according to the weight of the estimate, about 50-60 ml / kg. 3, can drink salt drinks, oral rehydration salt III is a good choice. In addition, it is also necessary to take more rest. Adequate rest can help to recover strength and be used to fight against the cold virus. A light diet during a cold does not require adequate nutrition. In fact, it is advisable to be slightly hungry and not full for fever, because hunger can make the body’s resistance increase.