Answer :
Change the pad about every 3–4 hours. If your period is heavy, you can change your pad more often. Changing pads often can cut down on any odor. Regular changing prevents buildup of bacteria and stops odor. If you have a heavier flow, you might need to change pads more often to make sure you don't leak.
Answer:
if sarah is a heavy flower she might mess which will lead to embarrassment.
changing of pads should be after 3-4 hours if one doesn't this may lead to cervical cancer