Author Affiliations: Cupron Inc, Modi ’in, Israel (Dr Borkow); Department of Dermatology, Regional Hospital of Copiapo, Atacama, Chile (Dr Mellibovsky).
In August 2010, a collapse occurred in a mine in Chile, trapping 33 miners about 700 m below ground. The miners were discovered 17 days later via a drilled borehole. The underground conditions were very harsh, with high temperatures (>34 °C) and high humidity (approximately 85%). Within 2 weeks, most miners were experiencing skin problems, mostly in their feet. An antifungal cream, clotrimazole, was delivered to the miners through the borehole, but their skin maladies did not improve.
Borkow G, Mellibovsky JC. Resolution of Skin Maladies of the Trapped Chilean Miners: The Unplanned Underground Copper-Impregnated Antifungal Socks “Trial ”. Arch Dermatol. 2012;148(1):134-136. doi:10.1001/archdermatol.2011.1280