Hi! My family recently purchased a young four week old puppy who is a Maltese and Shih Tzu mix. We only got him about three days ago and noticed that he is sneezing a lot and has gotten quite congested. He wakes up in his sleep to start sneezing for a few minutes before going back. He plays a lot, eats twice a day and sleeps fine other than the sneeze attacks. You can also hear him breathe because of his congestion. We’ve tried to use steam and now a humidifier. Is there anything else we can do?