10 surprising reasons why hives might be showing up—and what you can do about them

10. Hidden Allergens in Everyday Products

• Why It Happens: Chemicals or fragrances in soaps, lotions, shampoos, detergents, or dryer sheets may trigger hives in people with sensitive skin.
• What to Try: Switch to unscented, hypoallergenic personal care products. Always patch-test new items on a small area before full use.