Hexetidine is an antiseptic that is used as a mouthwash. It kills bacteria and fungi, and hence is used to treat minor mouth infections, including thrush. It can also be used to treat other mouth conditions that are caused or worsened by bacteria, such as gum disease, sore throats and recurrent mouth ulcers. It is also used to kill the bacteria that cause bad breath, and as oral hygiene to prevent infections, both before and after dental surgery.