Sore throat and phlegm are mostly caused by upper respiratory tract infections and acute tonsillitis. Sore throat and phlegm are mostly bacterial infections, and the examination shows that the mucous membrane of the pharynx is congested and swollen, and sometimes there can be purulent secretions attached to the enlarged surface of the tonsils. Treatment is mainly anti-inflammatory and symptomatic, such as oral cefixime, which cannot control inflammation can be intravenous antibiotics, such as penicillin. Most pharyngeal inflammation with anaerobic bacterial infections can be treated with additional metronidazole and so on. If you have a lot of sputum, you can add Ambroxol to dilute the sputum and cough it up easily, and you can also use nebulized inhalation to facilitate the recovery of the disease. At the same time, rest is needed to strengthen nutrition and drink more water to facilitate the recovery of the disease.