I have a 5wk old silkie that has mildly swollen eyes that are a little mucusy (looks like snot when you blow your nose). He constantly wipes his face on his back so he's yucky. But he is active, eats, drinks, poops fine, isn't mouth breathing, isn't coughing or wheezing, and doesn't have a smell. I really don't think it's anything serious but after a week he's only a tad bit better. Could this be just a cold? I have some fish amoxicillin so could anyone tell me the dosage?