Tip - Why Is My Dog Coughing & Drinking Lots of Water? | eHow

Since your dog cannot tell you how he feels, recognizing his symptoms requires careful observation. Observe whether he drinks more than usual, and coughs after drinking or after exercise. If he coughs more at night, this provides an important clue. Your dog’s cough may be dry or moist. He may even cough up mucus or blood. Whatever the...