Beer ads always show people hanging out at the beach, shoving lime wedges in their bottles. Do it in real life and you could end up with blisters on your hands.

It has to do with something called phytophotodermatitis. When the juice from a lime or lemon gets on your skin, it creates a chemical reaction that can make you hypersensitive to ultraviolet light. If you're out in the sun afterward, it can cause serious burns.

If it's just one or two lime wedges, you might be fine. If you're only in the sun for a few minutes, no big deal. Your hands might look a little red the next day, but nothing major. Some people are affected by it worse than others.

You just don't want to cut a bunch of limes up then stand out in the sun for long periods of time. Because the results can be pretty horrifying. Your skin can swell up and turn red for a week or more. Then you can end up with giant balloon blisters all over your hands.