A friend sent me a link to Kaiser Health News' "Bill of the Month": Toenail Treatment ~ $!500.
As a dermatologist, it interested me; the more so because the expensive topical medication featured has at, best, a 10% chance of being effective. A three-month course of Lamisil is ~ 40% successful; but as with all treatments for nail fungus, recurrences are common.
See KHN's Bill of the Month for background information and other category winners.
March 2018 Winner: Ms. Anne Soloviev
for topical Kerydin