AUTHOR=Zhang Xiaofang , Wei Kebo , Song Hongxia , Chen Xi , Yang Jiao , Zhao Jianmei , Jiang Yugu , He Xin TITLE=Efficacy and safety of small molecule drugs in the treatment of pityriasis rubra pilaris—A systematic review JOURNAL=Frontiers in Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1544197 DOI=10.3389/fmed.2025.1544197 ISSN=2296-858X