Could this be an allergy?

Question

I've had nasal congestion every day for about 3 weeks now. I have no other cold symptoms. I have to use nasal spray to get to sleep. Is this something I'm eating? Could it be dust (I live in Beijing, China, a very dusty city)?

Answer 1

You've grown accustomed to all the dust and pollution in Beijing and you're sick because they cleaned it all for the olympics.