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Aetiological Spectrum of Urticaria
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Singh G, Minocha Y C, Sood V K. Aetiological Spectrum of Urticaria. Indian J Dermatol Venereol Leprol 1989;55:173-176
AbstractOne hundred patients of urticaria were investigated to establish the causative agents. ,A detailed hist,6ry,:ccal examination and routine investigations led to detection of the cause m O/. patie s. Bacterial foci were responsible in 10%, worm infestations in 6%, drugs in 6%, insect bites in 3%, cold in 2%, chofine 'c in 4% and demographic in 3% rgl cases. In 60% cases, the cause was detected by intradermal tests with antigen extracts of pouen- hm fragments, dust, danders and food. Inhalantt were responsible in 35%: and foods in 25% cases. Among inhalants, pollen were found in 26%, insects in 1%, fungi in 9%, house dust and buffalo dander 'm 10/c each. In 6%, patients, no cause could be detected it; of extensive investigation.