Skip to content

    Issue · June 2025

    Bug bite or rash? How to tell what you are looking at

    June on Delmarva brings mosquitoes, ticks, poison ivy, and the first heat rash of summer. Here is how to tell a true bug bite from a plant rash or heat irritation - and why the difference matters for treatment.

    June 2025

    June is the month when every itch on Delmarva gets blamed on mosquitoes. But a lot of what people call bug bites in early summer are actually heat rash, poison ivy contact, or skin reactions to sunscreen and sweat. Treating heat rash with bug-bite cream won't hurt, but it won't help either. A quick visual check saves you money and frustration.

    What it looks and feels like

    • True bug bites: a small raised bump with a tiny dark center dot, often in clusters or lines (bed bugs), or random singles (mosquitoes, ticks). They itch within minutes to hours.
    • Heat rash: tiny clear or red bumps in areas where sweat gets trapped - underarms, groin, chest, back of knees. No central dot, and it burns more than itches.
    • Plant rash (poison ivy): streaky lines or patches that appear 12 to 72 hours after exposure, often with blisters. The pattern follows where the plant brushed the skin.

    What to do right now

    • If you see a central dark dot and the bump itched immediately: likely a bite. Use 1% hydrocortisone or calamine, and an oral antihistamine at night.
    • If you see tiny bumps in a sweaty area with no central dot: likely heat rash. Cool the skin, keep it dry, and switch to loose cotton clothing.
    • If you see streaky lines or blisters a day after yard work: likely poison ivy. Wash with degreasing soap and treat with hydrocortisone; see a clinician if it spreads.
    • If you are not sure: start with cool compresses and a gentle moisturizer. Avoid stacking multiple creams - they can irritate skin more than the original problem.
    • Check pets if you suspect fleas: flea bites cluster on ankles and lower legs, often in groups of three.

    Local note

    On the Peninsula, June is when lone star ticks are active in woodlots, salt-marsh mosquitoes hatch after the first warm rain, and poison ivy is leafed out and easy to brush against on trail edges. The beach is usually the safest place for sensitive skin this month - the ocean breeze keeps mosquitoes away and the sand does not carry urushiol.

    Look before you treat. See you in July.

    Other recent issues

    Get Delmarva Itch Alerts

    Seasonal itch warnings, practical prevention tips, and calm relief guidance for bites, poison ivy, beach itch, stings, heat rash, dry skin, and allergy-related itch across Delmarva.

    • Seasonal itch warnings before the rough weeks hit
    • Practical prevention for bites, poison ivy, beach itch, stings, heat rash, and dry skin
    • Calm relief guidance you can act on right away

    Unsubscribe anytime. We will never share your email.