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Creepy Cures

The hookworm larvae then prompt the lungs to create phlegm. After journeying to the small intestines, the larvae begin to roost approximately three days later. Growing in the intestines for up to three weeks, the hookworms then 'hook' into the intestinal wall where they begin jumpstarting the immune system. The worms typically live 1 to 2 years, laying eggs daily that pass through the body before hatching.

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If it creeps, crawls, buzzes or sheds its exoskeleton, there's a chance it could cure an illness that's stumping modern medicine. Parasitic worms, flesh-eating maggots, blood-sucking leeches and skin-nibbling fish -- man runs from these creatures and often tries to eradicate them. But scientists and MDs are finding out just how much we need these creepy-crawlers to stay healthy. We explore the healing properties of the animals many think are disgusting, but sometimes turn out to be lifesavers.