Blocked and stuffy nose

Hi mummies, my 2 months old baby has blocked and stuffy nose. When he sleeps i can hear his breathing is not so clear. But when I bring him to the polyclinic doctor, they said his chest is clear. He doesn't have phlegm. Only his nose is stuffy. And they gave me saline solution to clean his nose. But that doesn't really help to clear his stuffy nose and blocked nose. Can i know if there's any other ways i can make my son flu better? #pleasehelp #firstbaby #advicepls