1) Efflorescence 2) Hives 3) Hypersensitivity reaction 4) Nettle rash 5) Rash 6) Roseola 7) Skin rash 8) Urticaria 1) Hives 2) Urticaria 
• (n.) The act or process of whipping or stinging with nettles; -- sometimes used in the treatment of paralysis.
(ur″tĭ-ka´shәn) the development or formation of urticaria. a burning sensation, as of the sting of nettles.
Type: Term Pronunciation: ŭr′ti-kā′shŭn Definitions: 1. A burning sensation resembling that produced by urticaria or resulting from nettle poisoning. Synonyms: urticaria
[n] - an itchy skin eruption characterized by weals with pale interiors and well-defined red margins
noun a sensation of having been stung by nettles
the rash produced by certain insects by means of poisonous hairs or secretions.
the development or eruption of urticaria.