Dry, itchy throat and cough may be the cause of acute upper respiratory tract infection, chronic pharyngitis, gastroesophageal reflux disease and so on.
1. Acute upper respiratory tract infection: virus infection of the upper respiratory tract through droplet transmission, causing acute inflammatory reaction of the mucous membrane of the upper respiratory tract, local vascular congestion, increased permeability, a large number of inflammatory substances exudate, in addition to the evaporation of water due to fever in the throat, so the throat is dry and itchy cough.
2. Chronic pharyngitis: long-term repeated dust and other stimuli in the throat, chronic bacterial infections and other causes of the posterior wall of the pharynx lymphoid follicle hyperplasia, mucosal secretions decrease, so there will be a foreign body sensation in the throat, dry itchy sensation, burning sensation, irritating dry cough and other symptoms.
3. Gastroesophageal reflux: due to the dysfunction of the lower esophageal sphincter and other tissues that restrict the reflux of gastric acid, resulting in the reflux of gastric acid to the pharynx, corrosion and stimulation of the local mucous membranes and cause the above symptoms.
Dry, itchy throat and cough may be related to a variety of factors, it is recommended to consult a doctor for a clear diagnosis.