Question: are you supposed to rinse mouth with water after listerine?
Answer: You would be rinsing away the medicine in the mouthwash, so you should not rinse. However, if you have just brushed your teeth and then used a mouthwash afterwards to further sterilize your mouth, then yes, it's okay to rinse. With water. ... You would be rinsing away the medicine in the mouthwash, so you should not rinse.