What causes urticaria multiforme?
No exact causes is known...may be due to mycoplasma or streptococcus infection....or may be due to more usage of antibiotics such as amoxicillin
Urticaria multiforme is a benign cutaneoushypersensitivity reaction seen in pediatric patients that is characterized by the acute and transient onset of blanchable, annular, polycyclic, erythematous wheals with dusky, ecchymotic centers in association with acraledema.