A member asked:

I'm allergic to car ac i m resulted to severe headache why?

A doctor has provided 1 answer

Multifactorial: Its hard to say why you may have such a reaction to the car air conditioner. However, a common scenario is that your nasal sinuses become irritated and this leads to the headaches. I interpret these allergic reactions to be runny nose/sinus symptoms. Why is the ac doing this? Perhaps there is something in the air filtration system that leads to the irritation and allergic reaction.

Answered 9/2/2013

4.9k views

Thank

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