Mouthwash should not be used within 24 hours of tooth extraction; thereafter, mouthwash can be used, but it is recommended to consult your doctor. Generally the blood clot in the extraction socket within 24 hours after extraction is fragile and is prone to break and fall off, causing bleeding after extraction, so the use of mouthwash is not recommended. After 24 hours, the time to start using mouthwash should be chosen based on the blood seepage from the extraction socket. The main purpose of mouthwash is to assist in cleaning the mouth, as the inflammation, swelling, and pain caused by localized trauma after tooth extraction can make it potentially difficult to maintain the hygiene of the patient’s mouth. However, it should also be noted that mouthwash can not replace brushing, mouthwash is only an auxiliary oral hygiene cleaning. And medical mouthwash can not be used for a long time. It is recommended to consult a medical professional.