How to use the small yellow paper for mouth ulcer patches

The instructions for using the small yellow oral ulcer patch are as follows: Ensure your mouth is clean before use by thoroughly brushing your teeth or rinsing your mouth to remove saliva or residual medication from the ulcer and surrounding areas. Next, gently peel open the small yellow paper and take out one patch. If the patch has a double-layer structure, the white side typically contains the active medicinal ingredients, while the yellow side acts as a barrier against saliva. Position the medicated white side directly over the ulcer and gently place it onto the affected area. Press lightly with your fingertip for about ten seconds to ensure the patch adheres firmly to the ulcer surface. After application, it is recommended to keep your mouth relatively still—avoid talking or eating—to allow the medication to work effectively. Generally, after 20–30 minutes, you may rinse your mouth with water; by this time, the medication in the patch will have taken effect, and any undissolved portion will gradually fall off. Please note that oral ulcer patches should be used under medical guidance, avoid combining them with other medications, and monitor for any reactions after use.