Any number of choices works to catch or absorb your flow, and you should also wash the area daily with mild soap and water.
Tampons are also very popular.
Easy, safe, simple. When menstrual blood hits the air, it dries and develops an odor. All you need to do to control the odor is change your pad regularly - at least a few times a day, and certainly anytime the pad becomes soaked through. These are cylinders made of cotton, rayon or other synthetic fibers. You insert them inside the vagina, where they absorb your menstrual flow before it even leaves your body.