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THIS is a cautionary tale. Several years ago, I had a most uncomfortable
experience. Our local supermarket was selling mangoes at bargain-basement
prices, so every day for weeks I ate two or three of them. One day, after
finishing off several of the succulent fruits, my nose began to itch, my lips to
swell. Less than an hour later, my lips were huge and my nose felt as though it
belonged to Mr Potato Head. At that time I was, as far as I knew, allergic only
to poison oak and poison ivy. So what had happened? As it turns…

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