Learn how to identify poison ivy, oak, and sumac plants and the rashes they cause. Although poison ivy isn't the only plant with leaves that grow in clusters of three, the adage "leaves of three, ...

Summer is finally here, so that means it's time for hikes in woods and trips into the outdoors. But if you're not careful, you might come across an unwelcomed part of nature — poison ivy. So before ...

You’ve probably heard the phrase “Leaves of three, let it be.” But do you know other ways to protect yourself from poison ivy and similar plants? Keystone Infectious Disease’s Medical Director, Dr.