AUTHOR=Li Ziqing , Guan Kewen , Deng Hao , Ye Shuyan , Deng Jingwen , Yao Danni , Yan Yuhong , Chen Haiming , Lu Chuanjian , Yu Jingjie TITLE=Chinese herbal medicine (Guben Qushi Huayu formula) combined with Ixekizumab in reducing psoriasis vulgaris relapse: Protocol for a mixed-methods research study JOURNAL=Frontiers in Pharmacology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1551001 DOI=10.3389/fphar.2025.1551001 ISSN=1663-9812