sinus blockage

Hi, I got four chinese silkies, but when they arrived they got colds. (Maybe due to the fact it was transported by a truck and heavy wind blowing) The male is the one with more symptoms as one side of its nasal sinus become swollen. Tried pressing thinking the accumulations will exit nasal...

Hey! :) So as some of you may know my Welsh Harlequin duck, (who turned out to be a drake lol) Charlie, has a swollen face. This started when he was about two weeks old. He's probably around eight weeks now. Over time it got a lot better before flaring up again, and now both sides of his face...