Dry throat when you have a cold is caused by the stimulation of the nasopharynx by cold pathogens, which can lead to nasal congestion, runny nose, sore throat and dry throat. For treatment, you can use anti-infective drugs such as Shuang Huang Lian Oral Liquid, Pu Di Lan, Pan Lan Gen Granules, etc. Do not eat spicy, stimulating and greasy food, which can easily lead to fire and aggravate the symptoms of dry throat. Usually, you should drink more water, which can promote metabolism and play a certain role in lubricating the throat locally. It is also important to keep the room ventilated and the humidity appropriate, not too dry. In the cold medication to choose targeted drugs, if the cold is caused by a viral infection can choose antiviral drugs, if it is caused by bacterial infection can choose antibiotics for treatment.