Q. I have a 5 yr old cocker spaniel took him to groomers today and he came back with his eyes red and almost shut he is squenching or shutting
A. This sounds like he may have something in his eye. It's likely just hair from the groomers but he could have poked it somehow too. If you are comfortable enough you can try flushing his eye with a sterile saline solution to wash out any debris. If you are not comfortable doing this or he is still holding it closed I would take him to the vet. Eye injuries are best not treated at home.