词汇：worsening

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A regular mouthwash containing chlorhexidine can helpTrusted Source prevent germs from spreading and worsening the canker sore. It can also help avoid further inflammation. However, you’ll want to avoid mouthwash that contains alcohol because it can irritate the sore.

含有氯己定的常规漱口水可以帮助Trusted Source防止细菌传播并恶化口腔溃疡。它还可以帮助避免进一步的炎症。但是，你要避免含酒精的漱口水，因为它会刺激疮。

>> 16 Ways to Get Rid of Canker Sores