Sore throat caused by cold and flu in pregnant women may be caused by bacterial infection or viral infection, and should be treated according to different causes, and there is no fastest and best way. 1. Bacterial infection: bacterial infection may cause tonsil suppuration and inflammation causing sore throat, then choose to take antibiotics, such as amoxicillin. 2. Viral infection: pharyngeal congestion and edema after viral infection, the throat will be painful, you can choose some proprietary Chinese medicines, such as Banlangen granules, Lianhua Qingdian capsule and so on. In addition to medication, you should talk less and rest more, which can reduce the stimulation of the throat, and at the same time, you should drink more water to help the recovery of the cold. Specific medication should be used under the guidance of a professional doctor, not on their own.