Thanks for writng your query.
can be prevented by knowing the allergens which are triggering your problem and avoiding them.
I hope that you have been already investigated previously by your doctor.
It will be helpful if you mention the reports of the tests done.
If not already investigated, you should get the following investigations done :-
1. Complete Blood Count(CBC).
2. X-Ray PNS
3. Culture/Senstivity of the nasal discharge.
I would suggest that you should take Fenofexadine
120 mg once a day along with phenylepherine, if already not taken. Rest treatment depends upon the reports of the investigations.
You should also get yourself examined by an ENT specialist
to rule out Deviated Nasal Septum(DNS
I hope this is helpful to you.