Green discharge in eye

I came home from work today and Miko has a green discharge in her right eye. Other than throwing up a stick this morning, she's he rambuncious self and is eating right now. I figure it's an eye infection, or she caught my cold? Since it's the weekend, can I just give her the amoxicillin I have from her bladder infection. I'm going to call the vet on Monday, but til then....what do you all think??

Thanks in advance....you guys are the best!! :wink: