St. John's Wort Oil from St. Francis Herb Farm is a topical antimicrobial to help treat and heal minor skin wounds, cuts, burns, and bruises.β’ A classically effective topical ointment used for treating wounds and neuralgic conditions from antiquityβ’ Called "arnica for the nerves" because it's particularly useful for painful, neuralgic conditionsβ’ For bruises, contusions, sprains, lacerations, swellings, sunburn, and first-degree burnsβ’ Also used for earache