so I went to the doctor because my 7 week old has Congestion he said it's only through her nose she…

so I went to the doctor because my 7 week old has Congestion he said it's only through her nose she is fine and doesn't have signs of infection.. however he recommended for me to buy her saline drops and I've been using them to clear up her mucus but she still sounds congested I've also been suctioning her boogers which she hardly has but she sounds congested somehow ..any recommendations?? 😣😣