To groom a Shih Tzu at home, start by brushing the dog's coat while looking for any matted hair. Gently try to loosen the matted hair before using a pair of scissors to cut it off. Bathe the dog using a gentle shampoo and conditioner, and lightly blow-dry its fur.
When the dog's coat is completely dry, resume brushing the fur, and clip out any remaining matted clumps of hair. Comb the fur on the dog's tail and legs, and take note of any stray or unruly looking hairs. Gingerly trim the hair until the fur around the legs looks symmetrical.
Moving to the head of the dog, carefully comb down the fur, and trim any excess hair around the eye area. Alternatively, comb the fur thoroughly, and tie it up with a band or bow so that it is out of the dog's eyes.
Usually, there are stray strands of hair along the pads of the dog's feet. Take this time to inspect the area, and trim off any unwanted fur for a more polished look. Additionally, clip the nails of the dog, taking care to only clip off the tips. Inspect the nails for any rough edges, and take the time to file them until they are smooth.
Brush the dog at least once every three days to maintain a well-groomed coat. Additionally, most dogs excrete a discharge from their eyes. Clean this area every day using a soft, damp cloth.