Raising pets as part of the family is a growing trend in the world. People have fun with their pets, walking, playing and talking to them. Among all kinds of pets, dogs are one of the most common pets. Unfortunately, just like human, your dogs can get sick as well. Pain and parasitic infections are very common in dogs. As your dogs often suffer from illnesses silently, you should take them to visit a veterinarian if you ever suspect your dogs are feeling unwell.