What is the cause of a sudden very scratchy throat and cough

Sudden tickling cough may be related to inhalation of irritating substances, chronic pharyngitis, reflux pharyngitis and other diseases.
1. Inhalation of irritating substances: people who have not had this symptom in the past, in the inhalation of irritating suspended particulate matter or undesirable chemical substances, can occur in the airway of the rejection of the reflex effect, resulting in the performance of the throat suddenly very tickling cough.
2. Chronic pharyngitis: this disease is mostly caused by repeated episodes of acute pharyngitis and the stimulation of adverse physical and chemical factors. The mucous membrane of the pharynx is under the continuous action of inflammatory factors, and the sensory nerves are highly reactive. When inhaling too dry and hot or cold air, it is easy to have the irritating symptom of a sudden tickle in the throat and cough.
3. Reflux laryngitis: due to the decline in the role of esophageal clearance, esophageal mucosal barrier function is reduced, gastric contents can reflux to the throat, corrosion, damage to the mucosa of the pharynx, the pharyngeal sensory nerves are stimulated, the throat can be a sudden itchy cough and other uncomfortable symptoms.
When a sudden tickling cough cannot be relieved on its own for a short period of time or when it occurs frequently, there are other possibilities, and it is necessary to actively consult a doctor for a clear diagnosis after a systematic examination.