My dog has a dash, open wound under her eye. How would it cost to fix it.

I don't know but take Dash in and get her medical care! Renton VPC is low cost so sevices would be less than say an emergency clinic like Blue Pearl which they are fabulous

You could call them and ask for an estimate over the phone. Until they see your dog they will not be able to give exact numbers but you will at least know what the check up from their vet etc costs.