Is listerine good for treating ulcers?

Listerine is not recommended for treating ulcers, as it is primarily an antiseptic mouthwash designed for oral hygiene. While it can help reduce bacteria in the mouth, it may irritate oral ulcers due to its alcohol content and strong ingredients. For ulcers, it's best to consult a healthcare professional for appropriate treatments, such as topical medications or mouth rinses specifically designed for healing.