Smoke in the throat describes a strong feeling of dryness in the throat, which may be caused by dry laryngitis, upper respiratory tract infections, gastroesophageal reflux and other causes. 1. Dry pharyngolaryngitis: due to long-term work in the dust and aerosol environment, or due to nasal disease long-term open-mouth breathing and other reasons, resulting in the pharyngeal mucosa to lose the normal wetting and dry, less secretion. There is dryness and foreign body sensation in the pharynx. 2. Upper respiratory tract infection: Upper respiratory tract infection caused by cold, excessive fatigue leading to the lowering of the defense function of the whole body or respiratory tract. In the early stage of the disease, it manifests as discomfort in the throat or dryness of the throat and other symptoms. 3. Gastroesophageal reflux: bad life habits and environmental stress cause increased sensitivity of the esophagus, part of the gastric contents reflux to the pharynx and mouth, stimulating organs other than the esophagus, such as stimulation of the larynx to cause a sense of foreign body, throat dryness and so on. If the symptoms of dry throat are more serious, you should seek medical advice in time and avoid self-medication.