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Vulvar lichen sclerosus (VLS) causes itching, burning, pain, painful intercourse, sexual dysfunction, bleeding, and other genital miseries, including scarring. Topical applications of the ultrapotent steroid clobetasol propionate 0.05% (CP) for 3 months provides effective, safe, and reliable first-line therapy (British Association of Dermatologists' guidelines: strength of recommendation B; quality of evidence 2++). CP has some theoretical medical-legal risks, as prescribing guides and package inserts limit treatment to only 2 weeks and do not specifically address treating VLS. Mometasone furoate 0.1% (MMF) is a potent topical steroid recently suggested to work just as well as CP, with perhaps greater safety. Studies suggest twice-weekly ap…