GUM® Paroex® 0.12% Treatment Mouthwash is a solution to all those gum problems. This mouthwash has a fresh mint flavor and helps reduce plaque, soothe sensitive gums, and maintain healthy gums. It's ideal for use after surgery or a tooth extraction. If you suffer from swollen or bleeding gums, you're not alone. Approximately 70% of us will experience gum problems at some point in our lives. Directions for use: Prolonged use of products containing CHX (chlorhexidine digluconate) can sometimes cause tooth staining. But don't worry, this is temporary and can be reversed with brushing and good oral hygiene.