Hypersensitivity to mosquito bite: a case report.

Severe hypersensitivity to mosquito bites is very rare. A 18-year-old girl student has had multiple hemorrhagic bullae with atrophic scars on both limbs and left side of the face due to mosquito bites for 16 years. When she was seven years old, she noticed a severe local reaction with bloody bullae formation, chills, and fever several hours after the mosquito bite. The bullae developed into ulcers which finally became scars. This patient was confirmed to be hypersensitive to mosquito bites by the mosquito bite test. This case is the first record of mosquito allergy in Taiwan.