Keganliyan oral liquid in the treatment of acute pharyngitis (externally induced wind-heat syndrome) : a randomized, double-blind, placebo-parallel, multicenter clinical study

INTERVENTION: Control Group:Kegan Liyan Oral Solutio Simulator;Test Group:Kegan Liyan Oral Solutio; CONDITION: Acute Pharyngitis PRIMARY OUTCOME: Total disease response rate; SECONDARY OUTCOME: TCM syndrome score change value;Cough VAS score changes;Single symptom score change value;VAS score of pharyngeal pain;Time of onset of sore throat;Time for sore throat to disappear/Disappearance rate of sore throat;Time for complete fever reduction;Area under the pharyngeal VAS score curve;Use of palliative drugs; INCLUSION CRITERIA: (1) meet the diagnostic criteria of acute pharyngitis of Western Medicine; (2) meet the diagnostic criteria of wind‐heat Syndrome caused by exogenous pathogenic factors of Traditional Chinese Medicine; (3) body temperature =38.5 °c; (4) Pain Vas =4 points; (5) course of Disease =48 hours; (6) age between 18 and 65 years; (7) sign voluntary informed consent.