GPT and Increased total eosinophil count: Over the next 72 h, his rash progressed, he became febrile to 38.9 \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$^\circ \mathrm{C}$$\end{document}∘C, developed peripheral eosinophilia (1.45 K/cu mm, 13.8%; ref: 0–0.50 k/cu mm, 1.0–3.0%) and mildly elevated liver enzymes (AST 51 U/L, ALT 63 U/L), meeting criteria for drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome.