Horseradish (Armoracia rusticana) is a highly pungent root packed with glucosinolates (predominantly sinigrin). When the root is grated, these compounds are enzymatically converted into allyl isothiocyanate (mustard oil)—a highly volatile, powerful antimicrobial agent. Inhaling its vapors triggers immediate sinus drainage and bronchodilation, while systemic ingestion disinfects the urinary tract and stimulates metabolic and circulatory processes.
Educational information only — never stop or change a prescribed medication without talking to your prescriber first.
CRITICAL: Do not apply grated horseradish directly to the skin for extended periods, as its intense rubefacient action can cause chemical burns or blistering (always use a cloth barrier). Avoid oral use in patients with stomach ulcers, inflammatory bowel disease, kidney disease, or hypothyroidism.
Evidence level: Strong
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