My friend treated her MRSA infection using essential oils both internally (which almost every professional aromatherapist in the US recommends against but which can be effective when done with guidance) and topical application (bottom of feet every two hours) using a combination of onguard (combination of clove, wild orange and few other essential oils from an oil company), oregano, frankincense, peppermint and lemon. She took the protocol from a book called Modern Essentials.