There are several synonyms for the phrase "use mouthwash", including rinse with mouthwash, gargle with mouthwash, swish with mouthwash, and use oral rinse. Mouthwash is a great tool for maintaining good oral hygiene, as it can help kill bacteria and freshen breath. Different types of mouthwashes are available, including those with fluoride for preventing cavities and those with antibacterial agents to fight gum disease. It is recommended to use mouthwash after brushing your teeth and to swish it around in your mouth for at least 30 seconds before spitting it out. Incorporating mouthwash into your daily oral care routine can help keep your teeth and gums healthy and your breath fresh.