Chiggers: Chiggers are a type of mite. Chiggers most commonly bite areas of thinned skin and folds. Chiggers do not burrow into the skin, but inserts feeding structures and mouth parts into the skin. Symptoms of chigger bites include intense itching, a red raised bump, blister, or pimple. Treatment is generally with over-the-counter anti-itch creams.