Late-Onset Cutaneous Reactions after Insect, Jellyfish and Coral Stings.

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  • 動物性皮膚症の再燃，遅発反応　　昆虫，クラゲ，サンゴによる
  • —昆虫, クラゲ, サンゴによる—

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Description

Eight cases of late-onset cutaneous reactions, about one to two weeks after, are reported. Three of the 8 patients, aged 24 to 29, had generalized urticaria 13 to 15 days after receiving multiple stings of a wasp, Vespula flaviceps. One male patient, aged 29, was bitten by bed bugs at a hotel in Africa. His skin reactions to the bed bug bites did not develop until 7 days later. On the other hand, erythemato-papular skin lesions developed in his wife several hours after receiving bed bug bites, and she had also been bitten by the bed bugs several times previously. Two patients, aged 23 and 27, had painful erythematous skin lesions immediately after receiving jellyfish stings, and after 2 to 3 days these lesions subsided. About one week later, itchy papulo-vesicular lesions reappeared on the same sites and lasted for a week. Two patients, aged 21 and 63, were stung by a coral polyp. Immediately they had skin lesions, but these lesions subsided in a few days. One of them had itchy flare-up skin lesions 6 days later, while the other one demonstrated the same lesions 8 days later. Most skin reactions caused by insect stings occur shortly after the stings. However, late-onset reactions, about one to two weeks after animal stings, are occasionally observed as shown in the 8 patients reported here. We reported previously that experimental exposure to jelly fish, Carybdea rastonii caused late-onset reactions in 15 out of 25 volunteers. It is supposed that the process of sensitization took about one week in these cases. Primary exposure to foreign substances induces the production of the antibody that reacts with persisting antigens at the site of the stings or in the serum about a week later. Late-onset reactions may thus be more common than is generally realized following insect bites or animal stings.

Journal

  • Nishi Nihon Hifuka

    Nishi Nihon Hifuka 60 (1), 46-49, 1998

    Western Division of Japanese Dermatological Association

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