By  Li Ming

Go easy on the mouthwash because doctors say too much of it can ruin your tastebuds.

While mouthwash is becoming more popular to maintain oral health, some doctors advise not to use it too often since it can cause oral dysbacteriosis and may lead to taste impairment.

According to stomatology professor Tan Yinghui at Chongqing Xinqiao Hospital, some mouthwashes contain chlorhexidine gluconate, a chemical which can cause oral mucus to thickening and reduce the sensitivity of tastebuds. These mouthwashes can also reduce the secretion of saliva and make people's mouths feel dry, which after extensive use, can impair the ability to taste.

He advises it is better to use fresh water to rinse one's mouth, or if you use mouthwash, to only use 10ml and swish it around the mouth for one minute and then expel it. Then rinse with fresh water to get rid of some of the harmful chemicals.