This extensive example of urticaria shows erythematous, edematous, and pruritic plaques termed wheals
Urticaria
Hives (urticaria) is a common skin condition with an itchy rash of pink to red bumps that appear and disappear anywhere on the body. An individual lesion typically lasts a few hours before fading away, and new lesions can appear as older areas disappear.
Urticaria
Contact dermatitis (eczema)
CD (eczema): acute vesicular, crusted lesions on the face of a young girl. There is an intense conjunctival injection and edema of the eyelids.Contact dermatitis (eczema)
This was due to a reaction to rubber gloves.A. Note the patterned erythema and scale associated with nickel contact dermatitis resulting from this woman's necklace. B. Fluid accumulation between epidermal cells results in spongiosis that can proceed to small vesicles if intercellular connections are stretched until broken-thus the term spongiotic dermatitis.
Eczematous dermatitis