The duration that 200 ml of liquid lasts depends on the rate at which the liquid is consumed. If a person drinks 200 ml of liquid all at once, it will last for only a few seconds. However, if the liquid is consumed at a slower pace, such as sipping it over the course of a meal, it could last for several minutes. Ultimately, the length of time that 200 ml of liquid lasts is determined by the individual's drinking habits. **

The mouthwash should be stored in a cool, dry place away from direct sunlight. It is best to keep it in a medicine cabinet or a cupboard in the bathroom to protect it from heat and light exposure, which can degrade the quality of the product. Additionally, make sure to keep it out of reach of children and pets to prevent accidental ingestion. **

Mouthwash can be a helpful addition to a good oral hygiene routine, as it can help reduce bacteria in the mouth and freshen breath. However, not all mouthwashes are created equal, and some may contain ingredients that can be harsh on teeth or gums if used excessively. It's important to choose a mouthwash that is alcohol-free and contains fluoride to help strengthen teeth and prevent cavities. As with any oral care product, it's best to consult with a dentist to determine the most suitable mouthwash for your individual needs. **

The perception of Listerine mouthwash being "totally disgusting" is subjective and varies from person to person. Some people may find the strong taste and burning sensation of Listerine to be unpleasant, while others may appreciate its effectiveness in killing germs and freshening breath. Ultimately, whether Listerine is considered "totally disgusting" depends on individual preferences and experiences with the product. **

The use of mouthwash with ethanol is a topic of debate among Islamic scholars. Some scholars consider ethanol to be haram (forbidden) because it is derived from alcohol, which is prohibited in Islam. However, other scholars argue that the ethanol in mouthwash is not intoxicating and is used for medicinal purposes, making it permissible to use. It is recommended for individuals to seek guidance from a knowledgeable religious authority to make an informed decision based on their own beliefs and circumstances. **

Expired mouthwash may still be usable, but its effectiveness may be reduced. Over time, the active ingredients in mouthwash can degrade, making it less effective at killing bacteria and freshening breath. It is generally recommended to use mouthwash within its expiration date to ensure maximum effectiveness. If in doubt, it is best to discard expired mouthwash and purchase a new bottle. **

Swallowing small amounts of mouthwash is generally not harmful, as most commercial mouthwashes are designed to be safe if ingested in small quantities. However, swallowing large amounts of mouthwash can be harmful due to the high alcohol content and other potentially toxic ingredients. It is best to use mouthwash as directed, swishing it around in your mouth and then spitting it out to avoid any potential negative effects from swallowing it. If you accidentally swallow a small amount of mouthwash, it is unlikely to cause harm, but it is always best to contact a healthcare professional if you have concerns. **

Yes, you can still use old mouthwash as long as it has not expired. Check the expiration date on the bottle before using it. If the mouthwash has expired or has changed in color, consistency, or smell, it is best to discard it and purchase a new one for optimal effectiveness. **