Efficacy and Safety of Zihua Wenfei Granules in Treating Postinfectious Cough
A randomized, double-blind, placebo-controlled trial evaluates the efficacy and safety of Zihua Wenfei granules (ZHWFG) for treating postinfectious cough, specifically targeting the wind-cold invading lungs syndrome in traditional Chinese medicine. The study aims to assess the cough resolution and relief rates, alongside monitoring adverse events, across multiple centers in China.