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    Issue · April 2025

    Poison ivy washes: a calm comparison

    Dish soap, dedicated urushiol washes, and laundry tricks. What actually removes the oil, what does not, and what to keep in the shed before spring yard work.

    April 2025

    April is the start of serious yard work on Delmarva, and poison ivy is leafed out and ready. The rash is not from the plant itself but from urushiol, an oil that bonds to skin in minutes. Removing that oil is the whole game, and not every soap or wipe does the job.

    What it looks and feels like

    • Streaky red lines or patches that appear 12 to 72 hours after exposure, often with small blisters.
    • Intense itch that builds over days; scratching spreads the oil to new skin and can cause infection.
    • The rash is not contagious person-to-person, but the oil on tools, clothes, and pet fur can keep re-exposing you.

    What to do right now

    • Wash exposed skin within two hours with cool water and a degreasing soap - dish soap works in a pinch.
    • Dedicated poison ivy washes like Tecnu or Zanfel break urushiol bonds better than regular soap, especially after the two-hour window.
    • Wash clothes, gloves, and tool handles separately in hot water; urushiol can stay active on fabric for months.
    • Wipe down phone screens, glasses, and door handles you touched before washing your hands.
    • If the rash is already showing, washing won't stop it - switch to symptom care: cool compresses, calamine, and 1% hydrocortisone.

    Local note

    On the lower Shore, poison ivy loves fence lines and pine bases. The classic hairy vines on Sussex County oaks are easy to spot in April when the new leaves are red. If you are clearing brush, assume any three-leaflet vine is guilty until proven innocent.

    Wash fast, wash right. See you in May.

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