Not normal, and: might not be the flu, maybe recurrent upper respiratory tract infection, chronic rhino-sinusitis can be a cause, you haven't mentioned your symptoms though, at any rate kindly visit your doctor for evaluation, and referral if needed to an ENT specialist , and an allergist, if available, good luck
Answered 9/6/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
11 doctors weighed in across 3 answers
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