What is lidocaine and prilocaine topical? Lidocaine and prilocaine are local anesthetics (numbing medicines). They work by blocking nerve signals in your body. Lidocaine and prilocaine topical (for the skin) is a combination medicine used to numb the skin or surfaces of the penis or vagina. This medicine is used to prepare you for minor surgery or medical procedures on these areas.
1 A baking soda paste is another tried and true remedy to quickly make your canker sore feel better. 2  Mix a little baking soda and water and apply it to your sore. 3  Try not to eat or drink anything for about half an hour.ere are some tips. 1  Dab on some Alum Powder. 2  This old-time remedy has been passed down from generation to generation because it seems to work. 3  You can find alum in the spice section of the grocery store. 4  It is a white powder used to keep pickles crisp. 5  Wet a Q-tip then dip it in the alum; take care not to get too much.
At-home treatment for minor canker sores include: Saltwater Solution and Sodium Bicarbonate - Mix 1 teaspoon salt with one cup warm water. Swish the solution in your mouth for 30 seconds, then spit the solution out. In addition to salt, 1/2 teaspoon baking soda (sodium bicarbonate) may be added to the saline solution.