I have a dog who is 10 years old. He has advanced heart worms and is coughing a lot & breathes heavily. I can't afford the treatment, plus I am worried he may not survive it. I have been reading about natural ways to treat it. Anyone know anything about black walnut, wormwood, cloves and garlic for treating this in dogs. Any experience? I really want to have him around for at least another 3 to 4 years and am trying to find anything.