When an itchy rash occurs several days to weeks after a sting, the rash may mean a delayed skin reaction has occurred. Management. Tools for the diagnosis of ant hypersensitivity are skin testing, serum specific IgE, and sting Either way, here's what to do. You will likely be seen by a doctor specializing in eye care (ophthalmologist). A severe allergic reaction (anaphylaxis) may affect any body system and require emergency care. The symptoms last from hours to weeks, and victims usually require hospitalization. Tamanaha RH, Izumi AK. Jellyfish sting--delayed adverse reaction Last Saturday, the 28th of October, I was stung by jellyfish 3 times. By contrast, acute management of systemic reactions requires intramuscular epinephrine. Wear a protective suit: When swimming or diving in areas where jellyfish stings are possible, wear a wet suit or other protective clothing. After 3 weeks, only residual hyperpigmented macules remained, and CDUS showed complete resolution of the lesions. A few Local immediate reactions that are toxin mediated may vary from intense burning pain, linear red wheals, edema, erythema to skin necrosis. Jellyfish envenomation can cause an immediate local skin reaction, which is usually a painful linear vesiculourticarial eruption. Here, we present 4 such cases. She was treated with topical clobetasol daily for a week. A delayed reaction can occur many times over the course of 1 to 2 months following a sting. Jellyfish envenomation often causes an immediate painful vesiculopapular eruption. Here, we present 4 cases of DAR resulting from jellyfish stings in which CDUS evaluation was performed. In all cases, color Doppler ultrasonography was performed at the time of diagnosis, and in 3 of the cases, clinical follow-ups with ultrasonographic evaluations were performed. However, delayed clinical presentation is also possible, and clinicians should be aware of it. While many types of jellyfish are relatively harmless to humans, some can cause severe pain and are more likely to cause a systemic reaction. Pain is perceived instantly, … Their stings can cause different reactions, ranging from cutaneous, localized, and self-limited to serious systemic or fatal ones, depending on the envenoming species. In severe acute or delayed reactions, the use of systemic antihistamines, topical/oral corticosteroids, or tacrolimus ointment may be helpful.2, 4, 5. Less commonly it can cause a type IV allergic hypersensitivity that manifests with delayed or recurrent cutaneous lesions at the primary site or distant from the primary site. He had no cutaneous lesions for more than a month but then developed a painful skin eruption on his chest. A 57-year-old woman presented with a widespread papulonodular eruption. The histopathological features of a persistent lesion caused by a jellyfish sting may reveal a predominantly perivascular and periadnexal lymphohistiocytic infiltrate located primarily in the reticular dermis often admixed with numerous … 12 A few days later, the lesions can become 5 The sting is from a box jellyfish. Table 1 describes US characteristics before and after treatment and histologic findings. This could have been due to photoaging.8 It is noteworthy that CDUS allowed the treating physician to ascertain that skin inflammation had remitted and therefore to suspend treatment, even when clinical evaluation of the skin lesions remained almost unchanged. The Irukandji jellyfish sting is moderately irritating; the severe syndrome is delayed for 5–120 minutes (30 minutes on average). This reaction is self-limited and will resolve within hours. Although these rashes are annoying, they are not a serious medical problem. Here, we present 4 such cases. In general, reactions to jellyfish stings vary from the usual nonsystemic, localized skin reactions to the rare systemic life-threatening ones, depending on the species of the envenoming organism, the duration and extent of exposure, the number of nematocysts discharged, affected body area, location and thickness of affected skin, health, weight, age, and reaction of the host to envenomation, and the initial treatment administered. However, he deferred medical consultation for almost 15 days. By S. Veraldi and C. Carrera. While the immediate reaction is toxin mediated, an immune mechanism is responsible for the delayed eruptions.2 The treatment goal is to ameliorate the local symptoms/signs, prevent further nematocyst discharges, and avoid systemic manifestations. Some have very painful stings - but the term 'poisonous' is usually reserved for toxins which can cause us real and lasting harm. 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