Case ReportPublished 26 August 2026Granular parakeratosis associated with the use of laundry sanitizers containing benzalkonium chloride: a case reportMeizhen Fang · Jingqiu Zhang · Zilu Qu · Bin Hu · Yun Xia · Liang Zhang · Liuqing ChenFrontiers in Allergydoi 10.3389/falgy.2026.1906480