Thirty minutes after drinking mango juice, a child suddenly developed a limited swelling on the soft palate that hindered swallowing and later breathing. The mucosa in the area of the swelling is hyperemic and painless. Blood test 15 detected eosinophilia. The child's body temperature is normal. From the family history it is known that the child's older sister had bronchial asthma attacks. What type of edema did this child most likely develop?