Eliminate soy products: Eliminating soy products from your dog's diet may make quite a difference. Soy beans are loaded with proteins that can be hard to digest, producing a lot of gas in the dog's digestive tract. Find a dog food that does not contain soy.
No more table scraps: Giving your dog table scraps or changing dog foods can give your dog gas. If you give your dog too many doggie biscuits it can stir up some gas in the digestive track.
Exercise: Exercise your dog. A lot of exercise will help move the gas while your dog is still outside, leaving less for inside the house. It may also stimulate a bowel movement that will lessen the gas episodes inside the house.
Charcoal: Adding charcoal to your dog’s diet can help detoxify some of the noxious gases while they are still inside the intestine. Activated charcoal is sold over-the-counter at most pet stores. If you choose to give your dog charcoal, do not give it to your dog for more than two or three days at a time because it not only helps to detoxify noxious gases, but it can absorb nutrients as well, robbing your dog of vitamins and minerals. Ask your vet before you give your dog charcoal products.