Letter Re: Gentian Blue — An Old School Antibiotic
James Wesley: At a slide show about extreme trekking in the tropics, I asked the speaker what they used as a topical antibiotic and antifungal medicine while on the expedition. The speaker said they relied on Gentian Blue, an antibiotic that was used in World War I and II. Gentian Blue (or Crystal Violet) is used as a clothing dye. The early chemical industry put a big emphasis on the development of dyes. In the race to discover the first antibiotics, every chemical on the shelf was tested, and Gentian Blue was found to have powerful antibacterial, antifungal, and antiparasitical …