A randomized controlled trial on the effectiveness of Fengreqing oral liquid in the treatment of upper respiratory tract infection based on the actual medical environment

INTERVENTION: Experimental group:Fengreqing oral liquid;Control group:Yinhuang oral liquid; CONDITION: upper respiratory tract infection PRIMARY OUTCOME: Recovery rate;Pharyngeal pain disappearance rate; INCLUSION CRITERIA: 1. Comply with the diagnostic criteria of western medicine for acute upper respiratory tract infection; 2. Conform to the syndrome differentiation standard of exogenous wind‐heat syndrome in traditional Chinese medicine; 3. Aged 18‐75 years; 4. Pharyngeal pain VAS >= 4 points; 5. Agree and sign the informed consent form.