First of all your teeth are NOT an option! Try submerging bottle, with the cap covered, in hot water for a few seconds. If that didn’t do the trick, apply a generous amount of acetone nail polish remover to a Q-Tip and rub. For the future, to prevent this from happening, hold the glue container upright for several seconds so the glue drains out of the dispensing tip before recapping. Wipe clean and store upright.