A multi-center clinical trial to evaluate the efficacy and safety of Kangbingdu Granulesin the treatment of influenza

INTERVENTION: The experimental group:Kangbingdu Granules oseltamivir phosphate capsule Simulator;The control group: Oseltamivir phosphate capsule Kangbingdu Granules Simulator; CONDITION: influenza PRIMARY OUTCOME: the time of symtom alleviating;the time of fever relieving; SECONDARY OUTCOME: Dosage of acetaminophen used;TCM symptom score;incidence of complications (such as Suppurative Tonsillitis, Sinusitis, otitis media, acute bronchitis, Pneumonia and myocarditis etc.); INCLUSION CRITERIA: 1. Meet diagnostic of influenza inInfluenza. 2. Meet Weiqitongbing‐Waiganfenghan Neishangshizhi of traditional Chinese medicine syndrome standard 3. Aged from 14 to 75 years. 4. Course of disease is within 48 hours, axillary temperature >= 37.3 degree C; 5. Tested positive for influenza infection after the onset of symptoms using rapid diagnostic assay, with one or more respiratory symptoms (cough, sore throat or nasal obstruction). 6. Agree and then sign the informed consent.