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This can be either vasomotor rhinitis
or CSF leak. You need a thorough evaluation by an apt ENT specialist
. Vsaomotor rhinitis is not caused by any infection as such, it can trigger during emotional imbalance/ dry weather etc. Cerebrospinal fluid
leak can be noticed during heavy and strenuous work, which can also cause headache. Either way you need to be examined.
Dr. Naveen Kumar