Summer Surprises: Common Bugs You Can Actually Catch

15. Polymorphic Light Eruption (Sun Allergy): The UV Backstabber

Not all sunburns are created equal. Polymorphic Light Eruption (PMLE) is a lesser-known summer villain—a delayed allergic reaction to UV exposure. Within hours or days of sun exposure, itchy red bumps or blisters can erupt, often on sun-deprived areas like the chest or arms. The insidious part? You might mistake it for heat rash or bug bites. Though not dangerous, it can be uncomfortable and recurring. Prevention includes gradual sun exposure, protective clothing, and high-SPF sunscreen. If you break out after every beach day, it might not be bad luck—it could be your immune system misreading the sun.

16. Seasonal Styes: The Sweaty Eyelid Intruder

That painful red bump on your eyelid during summer? Likely a stye, caused by a blocked oil gland aggravated by heat, sweat, and bacteria. Styes are tiny but mighty irritants—creating swelling, tenderness, and watery eyes that can ruin your day at the pool or beach. They often sneak in due to poor hygiene, rubbing eyes with unwashed hands, or not cleaning sunglasses. The genius prevention? Wash your face regularly, avoid touching your eyes, and clean contact lenses and eye makeup tools frequently. Summer’s extra sweat makes this small infection surprisingly common—don’t let it cloud your view.