A mouthwash or rinse does not replace a regular oral hygiene routine of twice-daily tooth brushing and daily flossing. The main function of most mouthwashes is to freshen breath, although if you suffer from severe chronic bad breath (halitosis), talk to your dentist about other ways to address the causes of the problem and manage your condition.
That said, some types of mouthwash, such as fluoride rinses, can help protect teeth against acids produced by plaque bacteria if you use them after you have thoroughly brushed and floss your teeth. And your dentist may prescribe a specific mouth rinse if you are recovering from a fungal infection or a bout of gingivitis. But if your mouthwash needs are for basic breath freshening, you can read reviews and ask friends which products they like. Mouthwashes and rinses are available in different flavors such as mint and cinnamon, and you can keep more than one type on hand for variety. If you aren't sure whether you'd like the taste or sensation of a mouthwash, ask your dentist about getting a free mouthwash sample that you can try. Also, if you want a mouthrinse to prevent cavities or kill germs and control plaque, ask a dental professional.