Answered by Mufti Mohammed Tosir Miah
Could you please tell me if it’s allowed to use mouth wash like “listerine” during Ramadan whilst one is fasting
If one swallows the mouthwash, then without any doubt his fast will break. If one does not swallow the mouthwash, then it will be considered Makruh Tahrimi as there is an increase chance of a person swallowing the mouthwash, which will result in the fast breaking.
Try to use other alternatives such as Miswak or a toothbrush (without the paste) and brush at regular intervals during the day to stop the bleeding and pain.
Only Allah Knows Best
Mohammed Tosir Miah
Darul Ifta Birmingham