Today's public service announcement: A simple way to prevent swimmer's ear (one of the most common reasons for Dr's visits while in the Caribbean), with items you have in your bathroom cabinet:
"...If you know you don't have a punctured eardrum, you can use homemade preventive eardrops before and after swimming. A mixture of 1 part white vinegar to 1 part rubbing alcohol may help promote drying and prevent the growth of bacteria and fungi that can cause swimmer's ear. Pour 1 teaspoon (about 5 milliliters) of the solution into each ear and let it drain back out. Similar over-the-counter solutions may be available at your drugstore."