Could that rash be an insect bite ... which causes large, painful bites, Frye says. A fly bite typically looks like a red welt, and "it often has a little center core to it," Kassouf says.

Could that rash be an insect bite ... which causes large, painful bites, Frye says. A fly bite typically looks like a red ...

And how to tell if that little welt is turning into something ... and avoiding insect-infested areas and nests will prevent most bites and stings. Spend enough time outdoors, though, and one ...

Bedbugs are sneaky creatures. They typically bite while you're asleep. And the itchy, red marks they leave behind will often ...

As temperatures rise and outdoor activities increase, medical experts are warning about a surge in dangerous bug ... but their bites can transmit serious diseases. The raised, itchy welts they ...

Could that rash be an insect bite ... which causes large, painful bites, Frye says. A fly bite typically looks like a red welt, and "it often has a little center core to it," Kassouf says.