Papular urticaria is an allergic reaction to insect bites or stings causing itchy red bumps on the skin. Some bumps called vesicles or bullae can become fluid-filled blisters, depending on size. Keep ...
Urticaria affects both children and adults, with chronic cases more common in women, and often presents in emergency or dermatology settings. Conditions like vasculitic urticaria, erythema multiforme, ...