Colds are meant to be self-healing, but drinking plenty of water in moderation can ease the uncomfortable symptoms of a cold and promote healing. A virus that infects the upper respiratory tract of the body can lead to a cold, which can cause symptoms such as nasal congestion, sneezing and a runny nose. The disease is self-limiting and can usually heal itself in about a week. Drinking water speeds up the body’s metabolism and can provide the water needed for the body’s immune response. In addition, drinking more water increases the amount of urine in the body and promotes the elimination of metabolic wastes from the body. When you have a cold, you may also experience discomfort in the throat, such as coughing, itching and dryness of the throat, which can be relieved by drinking water. If the symptoms are obvious, you can apply cold medicine under the guidance of a doctor or pharmacist for symptomatic treatment, such as compound pseudoephedrine extended-release capsules, if the symptoms fail to improve or even gradually aggravate, you need to consult a regular hospital in a timely manner, and cooperate with the doctor to improve the examination, standardized treatment.