How to tell if my eye is infected?

My son threw a plastic container at me yesterday and the sharp corner hit me directly in my eye. I went to the doctors last night and was told I have a corneal abrasion, was given antibiotic eye drops. I was told to rest my eye last night and it should be better as of this morning, just to watch for infection. But what he didn't tell me is how to tell if it's infected. The foreign body sensation is almost gone, but my eye is really swollen, bright red, and I can barely keep it open, it's watering so bad all the time that the water is running down my face pretty much nonstop. Is this normal? or do I have an infection? I do not have a vehicle to get to the doctors until this evening when my husband gets home from work, otherwise I would probably just go back to the doctors. Thanks everybody in advance!