Freeze your dog some water sorta like a frozen ice block for them he would also find sum relief wit cold concrete or tiled areas that r not in the sun I also freeze my dogs marrow bones and if u r handy to the beach at the end of the day take him 4 a...

It wld be interesting to know what you do feed your dog??? there are specific foods you can give to older dogs or even feeding puppy food. Def take to vet though cld be teeth or worms cancer cld b way down on the list of probs it wld be well worth it...