Due to severe allergic reaction and mucu

Due to severe allergic reaction and mucus thickening in paranasal sinus, undergone septoplasty +FESS in 2011.At that time ENT surgeon prescribed Rhinocort aqua which I have been using for the last three years and subsequently replaced with Nasomac AF. These were perfectly maintaining the health. But recently ophthalmologist suggested that the eyes are getting weak due to the steroid nasal spray. On further ENT consultation, stopped Nasomac AF spray and started Alerfix total. After use of 2 months, it seems huge mucus is dropping in the throat and feeling to have fever, though actually fever did not happen. Kindly suggest a suitable long term treatment plan. With Alerfix total condition is not as good as with Nasomac AF.