Sore throat after Omicron conversion may be caused by incomplete recovery of symptoms or infection with other respiratory bacteria or viruses. You may choose temporary observation, general treatment and medication to relieve symptoms. 1. Temporary observation: Omicron can cause sore throat, and the symptoms will not disappear completely in a short time after conversion. This situation can be observed temporarily without special treatment. 2. General treatment: keep the throat moisturized to reduce the irritation reaction when you have sore throat, drink more water if necessary, and the diet should be light, nutritious and easy to digest. The room needs to be opened and ventilated frequently, which is conducive to air circulation and reduces the probability of secondary infection. 3. Medication: If it is determined to be related to the infection of other bacteria, it should follow the doctor’s instructions to take oral cefixime, azithromycin, hydroxybenzylpenicillin and other medications to reduce inflammation; for the pain in the throat caused by viral infections, it can be taken orally to take antiviral medications such as ribavirin. If sore throat occurs again after Omicron conversion, it should be alerted that it is caused by recurrent Omicron infection. Prompt consultation and diagnostic analysis by nucleic acid test are recommended.