Note: Once the oil is absorbed into your skin, it can't be spread — so poison sumac rashes aren't contagious. However, if someone touches your skin or clothing while the oil is still on it ...

Just thinking about poison ivy can make you itch. Blistering rashes on your arms and ankles, oozing bumps between your fingers and eyelid-swelling exposures are all-too-familiar summer hazards. Poison ...

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

Poison ivy is not considered contagious in the ... like poison oak and poison sumac also contain urushiol, so coming in contact with them can cause the same rash and similar symptoms, says Bunick.

There are a number of plants to avoid in Delaware. Here's how to identify the big three – poison ivy, oak and sumac.