Gargle and mouthwash are topical dosage forms that are used to treat conditions affecting the mouth and throat. Gargle is a solution that is swished around the mouth and throat and then expelled, usually to treat the sore throat or other types of throat irritation. Mouthwash is a solution that is swished around the mouth and then expelled, usually to treat oral hygiene conditions such as bad breath or gum disease. Both gargle and mouthwash are commonly formulated with active ingredients such as antiseptics, anti-inflammatory agents, or antimicrobial agents that are effective against the specific condition being treated. Gargle and mouthwash are convenient and easy to use, but it is important to follow the manufacturer's instructions for use, to avoid swallowing the solution, and to rinse the mouth thoroughly with water after use. Some gargles and mouthwashes may cause side effects such as stinging or burning, so it is important to monitor for these and to discontinue use if necessary.