Good day ! Justin, you must try this kind of treatment for your cat this is a simple advise for me. You can use a humidifier can sometimes loosen nasal mucus, making it easier to drain. Chronic inflammation is rarely curable but it can be treated on an ongoing basis. If there is a bacterial infection present, antibiotics are the first course of action. Otherwise, medication will be prescribed to treat the underlying cause for the inflammation. Hope that your cat will be okay !