A member asked:

Can only breathe through nose on one side and it alternates one side to the other usually over night. but nose clears both sides only while exercising

A doctor has provided 1 answer
Dr. John Chiu answered

Not unusual: The congestion alternates about once every 3 hours but is usually not noticeable in the absence of moderate nasal congestion. You will need to see your doctor if you are bothered by this to find out the cause. Exercise leads to increase in norepinephrine (a stimulant and nasal decongestant) and leads to the decongesting effect.

Answered 10/23/2017

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