Always start with clean hands. While you're using your Ruby Cup, simply rinse it with water each time you empty it, before using it again. While on your period, there is no need to disinfect your cup between uses. After emptying, wash your cup with water. Avoid fragranced soaps that may alter the pH of your vagina. If this is not possible, or you are in a public bathroom then just rinse with bottled water, or wipe it clean with a tissue.