Firstly, it can be caused by air pollution, dust, allergens and other irritants that can lead to inflammation of the mucous membrane of the throat, causing itching, coughing and discomfort in the throat. It can also be caused by rhinitis, pharyngitis, laryngitis, gastro-oesophageal reflux and other diseases. When there is no acid reflux, heartburn, belching and bloating, you can first consult an ENT doctor.