There are many synonyms for the phrase "uses mouthwash." Some common alternatives include "rinses with mouthwash," "gargles mouthwash," "uses oral rinse," and "employs mouth rinse." Additionally, more colloquial phrases such as "swishes with mouthwash" or "cleanses with mouthwash" could also be used. Regardless of the specific phrasing, using mouthwash is an important part of maintaining good oral hygiene. Mouthwash can help freshen breath, kill bacteria, and prevent cavities. When combined with brushing and flossing regularly, using mouthwash can help keep your teeth and gums healthy.