首页|Dermatitis after exposure to Lymantria dispar dispar
Dermatitis after exposure to Lymantria dispar dispar
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NSTL
Cma-Canadian Medical Assoc
In early June 2021, a 60-year-old man presented to our emergency department with 4 days of progressive facial swelling and pruritic rash that was not responsive to valacyclovir (Figure 1). Slit-lamp examination did not suggest herpes zoster or ophthalmia nodosa. Sixteen hours before onset, he had been removing and shaking a burlap trap, placed because of a local infestation of Lymantria dispar dispar moths. He reported no previous reactions to latex, atopy nor prior contact with this moth species, but reported annual infestations of L. dispar dispar on his property since 2019. We treated the patient with prednisone (20 mg once a day for 7 days), and his lesions resolved in 3 weeks. Two weeks later, he developed a similar eruption 1 day after weeding under a maple tree infested with L. dispar dispar. This cleared after another 2 weeks of prednisone, which was then tapered, with no recurrence.
NSTL
Cma-Canadian Medical Assoc
