A few of my pups have been catching something lately. Lots of eye drainage have thrown up a few times are running hot. Still drinking and will eat raw meat. They have made a full recovery after a few days but it has gotten to 3pups in the past week and a half and I'm not sure if its the weather or not. Pennicillin did seem to help the oldest(3months)....for about 12hours give or take....any ideas? Dog flu