Inserting a tampon shouldn’t hurt. It’s a good idea to use the smallest size tampon when you’re learning how to use tampons for the first time. It’s also easier to insert it when your menstrual flow is moderate to heavy, as this allows the tampon to glide in more easily. If the tampon is inserted correctly, you shouldn’t feel it.
If you feel uncomfortable in any way, you may have inserted the tampon incorrectly or the tampon may not be placed far enough into the vagina. If this happens, just remove the tampon and start again with a new tampon. Remember that practice makes perfect. If you don’t get it on the first try, your second try will most likely be successful. Instead of getting frustrated and giving up, relax and try again!