To wash a menstrual cup, it is important to avoid using harsh chemicals that can damage the cups material and be harmful to your body. Here are some tips on how to clean a menstrual cup:

1. Between uses during your period, rinse the cup with clean water. You can initially rinse with cold water, then follow it up with a hot rinse to disinfect.

2. At the end of your period, sterilize the cup by boiling it in water for 5 to 10 minutes. You can also use a sterilizer in the microwave or oven.

3. Avoid using any chemical products you would use to clean your house when cleaning your menstrual cup. This includes scented, oil-based, or antibacterial soaps, hydrogen peroxide, baking soda, vinegar, dishwashing liquid, rubbing alcohol, and bleach.

4. Use a mild, unscented, oil-free soap to clean the cup. Some menstrual cup brands also offer dedicated cleaning solutions that are compatible with the cups material.

5. Always wash your hands before and after insertion of the cup.

It is important to note that cleaning a menstrual cup is different from sterilizing it. Sterilizing the cup involves boiling it in water for a few minutes, while cleaning it involves removing any bacteria or buildup and preventing stains and odor.