A tampon is a menstrual product designed to absorb menstrual flow during a period. Tampons are made of cotton and are designed to be inserted into the vagina with or without an applicator. Tampons come in different sizes or absorbencies, such as light, regular, and super, and it is best to use the lowest absorbency tampon needed. Tampons should be changed every 4 to 8 hours, and no tampon should be used more than once. Tampons are considered "internal" protection, while pads are "external" period protection. Tampons can be used during activities such as swimming or playing sports. It is important to wash your hands before inserting a tampon and to follow the directions carefully. If you experience discomfort or become ill as a result of using a tampon, you should consider reporting it to the FDAs safety information and adverse event reporting program.