Gishy Goo! One Patient Kit - Red by Gishy Goo. $7.45. Because braces touch your cheeks, lips, and tongue with wires, hooks, and rough edges, you are likely to feel a bit sore at first. You also may get little sores called mouth ulcers or "canker sores." Gishy Goo is the perfect solution to help you get more comfortable with your braces at the beginning and throughout treatment. Gishy Goo protects your lips and cheeks throughout the day, even while eating and drinking.