Central wheal with red border in acute urticaria.
Typical pink wheals in child with urticaria.
Multiple polycyclic red wheals of different sizes in a child with urticaria.
Multiple shapes of urticarial lesions in a child.
Pink wheals on the leg of a child with urticaria.
Angioedema of the scrotum and foreskin in an infant.
Dermographism. Light stroking of the skin evokes intense wheal and flare reaction.
Heat and exercise (cholinergic) urticaria. Central wheal within large blotchy erythema.
CLINICAL FEATURES
Acute urticaria
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