The old saying goes: "Leaves of three, let them be." Poison ivy, oak and sumac are three plants that carry the same poison — urushiol, a colorless, odorless oil that causes an itchy, irritating rash in almost everyone who comes in contact with it.

It's summer, and when it gets hot, our bodies sweat to help regulate our body temperature. But for some people, sweating in much greater amounts than necessary happens regardless of the temperature. This condition is called hyperhidrosis. In most cases, hyperhidrosis occurs for no apparent reason.

Hand, foot and mouth disease is a common childhood illness that gets its name from the distinctive rash that appears in the mouth and on the hands and feet.

Music icons join together in a concert to support teens with cancer at CHOP through Teen Cancer America.

When is a child too young to receive a vaccine in a series, and when is an interval too short or too long to administer it?

Healthcare providers should be aware of signs of syncope, or a faint feeling, in adolescent patients following vaccine administration.

By federal law, the following vaccination administration information must be documented in the patient’s medical records.

Find out how to recognize a case of measles and what to do.

Rock singers Roger Daltrey and Joan Jett will present an evening of music and philanthropy at Verizon Hall at the Kimmel Center in Philadelphia on July 28, 2014.

A new CHOP study has uncovered several gene networks with potentially important roles in autism. These networks may offer attractive targets for developing new autism treatments.