Be careful . . . lime in beer can mark skin
In a TV advertisement for Corona beer, a woman on a beach, irritated by her companion ogling a bikini-clad blonde, squirts him with the lime sitting atop his beer.
He may be in for worse than a surprise: a nasty skin reaction that one doctor is calling "Mexican beer dermatitis".
A substance in lime juice, if left on the skin in the sun, can cause the skin to become discoloured, as if by poison ivy or a jellyfish sting -- and the marks can last for months, reports New York dermatologist Scott Flugman.
Mexican beers, particularly Corona, are typically served with a lime slice wedged in the top of the bottle.
The drinker shoves the lime into the bottle and holds the thumb over the bottle's mouth while turning the bottle over to mix in the juice.
But if the drinker is not careful, the beer's carbonation can spray lime juice and beer all over the skin -- "especially in a patient who is shirtless by a beach or pool", wrote Mr Flugman in a paper.
He says you should wash off any spills immediately.