目的：观察急性咽炎和慢性咽炎急性发作的喉友口腔喷剂治疗效果。
Objective:To observe the therapeutic effect of Houyou Spray(HS)on acute pharyngitis and acute attack of chronic pharyngitis.
目的：观察急性咽炎和慢性咽炎急性发作的喉友口腔喷剂治疗效果。
Objective:To observe the therapeutic effect of Houyou Spray(HS)on acute pharyngitis and acute attack of chronic pharyngitis.
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