What causes redness, swelling, and heat in the ear after a mosquito bite?
Disease description:
Recently, my mother was chatting with neighbors in the alley. After returning home, she discovered that a mosquito had bitten her ear. The bite hasn’t healed, and over the past few days, she noticed swelling—and she says the area feels warm to the touch. What could be causing this? Why does a mosquito bite on the ear lead to redness, swelling, and warmth?
Doctor's answer (1)
Dr. Wang Xiaoyan
Redness, swelling, and warmth of the ear following a mosquito bite may clinically result from the following causes:
First, after biting, the mosquito injects toxins into the ear, triggering a localized cutaneous toxic reaction in the patient—manifesting as redness, swelling, and warmth—a very common clinical presentation.
Second, the toxins introduced by the mosquito may provoke a localized allergic reaction in the ear.
If you experience mosquito bites on the ear accompanied by redness, swelling, or warmth, it is recommended to promptly consult an otolaryngologist or dermatologist for evaluation.
