What Can I Use To Treat A Persistent Nasal Infection With A Bad Smell And Taste After Hayfever Nasal Spray Didn’t Help?

Hi i have an infection up my nose and ive had it for the past couple of days and i spoke to my GP recepionist and they advise me too go the cemist and see what they give me and i did and they gave me hayfever nasil spray and the smell of the infection and taste is horrible so what else can i use toi get it gone