Should I consider a rhinoplasty revision in order to restore my breathing ?

I'm almost 6 month post the operation and I'm still left with a congested nostril for the most of the day , it would switch to the other nostril depending on the side I lay on. I have went to the surgeon and he informed that the problem is because of my allergies which I do have , but it was only causing me to have a runny nose before the operation ,and never to effect my ability to breathe . tried many sprays and pills but they're only temporarily

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