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. **

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 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. **

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 a small amount of mouthwash is generally not harmful and may only cause minor stomach upset. However, swallowing a large amount of mouthwash containing high levels of alcohol or other chemicals can be toxic and lead to symptoms such as nausea, vomiting, dizziness, and in severe cases, difficulty breathing or even alcohol poisoning. It is important to seek medical attention if a significant amount of mouthwash has been ingested. **

Yes, old mouthwash can still be used as long as it has not expired and has been stored properly. However, it may not be as effective as a fresh bottle of mouthwash, as the active ingredients can degrade over time. It's important to check the expiration date and look for any signs of deterioration, such as changes in color or consistency, before using old mouthwash. If in doubt, it's best to discard the old mouthwash and use a new bottle. **