Dry, scratchy throat and cough may be related to environmental factors, dietary factors, acute and chronic pharyngitis and other reasons. 1. Environmental factors: The indoor environment is too dry or not ventilated for a long time, which can easily cause the symptoms of dry, itchy throat and cough. Hot weather and dusty air can also cause dry, itchy throat and cough. 2. Dietary factors: If you eat too salty or spicy food, stimulation of the mucous membrane of the throat can cause a dry, itchy throat and cough. 3. Acute and chronic pharyngitis: patients who suffer from acute and chronic pharyngitis, the pharynx due to viral and bacterial infections triggered by inflammatory reactions, which can lead to different degrees of mucosal congestion, swelling, resulting in reduced glandular secretion, obstruction of excretion, the occurrence of pharyngeal dryness, the inflammatory factor stimulation caused by paroxysmal dry cough. When the symptoms of dry throat and tickling cough have not been able to relieve, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor active treatment.