Chronic pharyngitis causes more sputum and obvious sputum attachment, mainly caused by the following aspects: 1. Diffuse mucous membrane hyperplasia and bulge in the pharynx is obvious, which will have more sticky secretions attached to the wall of the pharynx, and more frequent irritating cough in the morning, which in severe cases leads to nausea and vomiting symptoms, but there is no obvious coughing up of secretions. 2. Chronic inflammation of the upper respiratory tract, such as chronic sinusitis, nasopharyngitis, etc., can cause secretions to go through the posterior nostril to the posterior wall of the pharynx, thus reflexively coughing up sputum. 3, the patient’s long-term open-mouth breathing, the dust in the air does not go through the filtering effect of the nose, but directly stimulates the mucous membrane of the pharynx, resulting in excessive dryness of the mucous membrane and the symptoms produced. Treatment requires removing the cause of the disease, which can be relieved by using throat-clearing herbal preparations, paying attention to gargling, maintaining oral hygiene, and actively treating chronic respiratory diseases such as the nose.