Sore throat due to viral infection can be treated with antiviral drugs, pain relief and symptomatic treatment, and if accompanied by cough and phlegm, cough and phlegm medication is also needed. 1. Antiviral drugs: Because of the sore throat caused by viral infections, if the pain is mild, no drugs can be used, viral infections are self-limiting diseases. If the condition is more serious and systemic symptoms appear, you should choose to take oral ribavirin, oseltamivir and other antiviral infections for symptomatic treatment. 2. Pain relieving and symptomatic drugs: anti-inflammatory and analgesic drugs such as aspirin and acetaminophen can quickly reduce the symptoms of pain. 3. Cough and phlegm medication: viral infections may also cause an increase in secretions, which can lead to coughing and coughing up phlegm, etc. Ambroxol, bromhexine, dextromethorphan, etc., can be used to clear airway secretions, reduce airway inflammation, and promote recovery. The application of drugs need to strictly follow the doctor’s instructions, it is recommended that patients do not use their own drugs to avoid adverse consequences.