Alcohol binds with water and accelerates its evaporation. You can buy commercial drying drops like those reviewed on GoodRx or create a highly effective homemade solution:
Before using liquid solutions, try these physical manipulation methods to shift the surface tension holding the water in place. water stuck in ear for days best
If water remains after —or if you notice any of these—the best action is professional removal: Alcohol binds with water and accelerates its evaporation