Back issues No.3 - 2000 / Original Study  

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Epidemiology and Clinical Analysis of Paederus Dermatitis in Taitung, Taiwan
Yuan-Hsin Lo, Yu-Hung Wu, Hsin-Yi Su
Dermatol Sinica 18: 177-184, 2000

Paederus dermatitis is an irritant contact dermatitis caused by body fluid of Paederus. Due to its common occurrence and overlapping features with other dermatoses, we conducted a survey of its epidemiology and clinical appearance. The ages of the total 63 patients(female 37, male 26) range from 3 months to 72 years, with a mean of 28.2 years. The number of the patients increased gradually from May and reached peak from June through August. The number declined sharply thereafter, and only sporadic cases occurred in the winter. The distributions of the lesions are as follows, head(35%), neck(35%), trunk(21%), lower limbs(16%) and upper limbs(13%). Some of the patients have skin lesions on more than one area. Pain is the most common symptom. Pustules could be seen in 14% of the patients and only a small amount of Staphylococcus aureus was isolated in one patient. Post-inflammatory hyperpigmentation lasting for more than one month was noted in 69% of the patients, and usually subsided within 3 months.

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