St John’s wort oil is a good healing oil for the skin and has anti-inflammatory, antimicrobial, and astringent properties. It is often used in massages to ease sprains, strains, muscular aches and pains, rheumatism, fibromyalgia, neuralgia, and sciatica pain. St Johns wort oil can also be used for inflammations, wounds, burns, bruises, shingles, and varicose veins.