his hair all summer..cancer? Im really worried he might have cancer...because of the hair loss and the change in appetite and the brown spot in his eye...he is a chow mix....please reply..

For god's sake, take this dog to the vet. If he's been losing his appetite, that could be related to something serious. Better safe than sorry, take him to a vet. Even if you don't have the money for it, take him anyway. Some vets will let you arrange a payment plan or something. Just take him there.