What is the cause of a constant tickle in the throat that leads to a constant cough?

The throat has been tickling, resulting in a constant cough may be related to chronic allergic pharyngitis, reflux pharyngitis, cough variant asthma and other diseases.
1. Chronic allergic pharyngitis: after contact with allergens or inhalation of allergens, allergic reactions can be triggered, and allergic symptoms such as itchy throat and coughing all the time can occur.
2. Reflux pharyngitis: gastric reflux to the throat, corrosion damage to the mucous membrane of the throat, which can lead to local nerves in a high state of reaction, prone to throat has been itchy leading to coughing symptoms.
3. Cough variant asthma: chronic cough as the only or main symptom, and the existence of airway hyperresponsiveness of an atypical asthma. The onset of the disease is influenced by the interaction of genetic and environmental factors. Exposure to allergens and neuromodulation can lead to a constant tickle in the throat, resulting in a constant cough.
If there is a constant tickle in the throat that leads to coughing, it is important to seek medical attention and systematic examination to clarify the diagnosis and cause of the disease.