I have an eye infection how much will I pay to see an eye doctor?

I thought I had pink eye, and bought some over the counter pink eye meds, but it stop working. My it's been about almost three weeks and my left eye keeps on watering, cloudy stuff is coming out, an dit feels like I have a piece of glass in my eye. The only thing that helps is hot towel against my eyes for a few minutes. When I wake up in the mornings I have these hard real salty like crust around my left eye. I have a little on my right eye, but my left eye is horrible. It went away for a little while, but now its back and it's driving me insane. I havb no eye insurance. Does anyone know how much it's going to cost to see an eye doctor?