1st July 2023

A 27-year-old man presents to a dermatology clinic with a 6-month history of an itchy eruption on his upper limbs

A 27-year-old man presents to a dermatology clinic with a 6-month history of an itchy eruption on his upper limbs and trunk that tends to flare on and off. He is diagnosed with urticaria.

What type of hypersensitivity reaction is urticaria most likely associated with?

Select the SINGLE most appropriate option from the list below. Select ONE option only.