No. Make sure your preteen or teen understands that they can only use one tampon at a time. If they’re worried that their flow is too heavy, have them use a “Super” absorbency size, or add a pad or liner to their underwear. When they’re using a tampon or menstrual cup, they can add a liner, pad, or period underwear as a backup to catch any leaks. They can also wear dark clothing on your bottom half or tie a top or jacket around your waist. If they’re really nervous about staining their clothes by accident, encourage them to keep an extra change of clothes in their backpack or locker. If they’re worried about staining their bedsheets, they can put a towel down to lay on during sleep.