Swelling is a pretty common symptom of teething.  Inflamed and swollen gums are one of the most common symptoms of puppy teething. Generally, dogs are in a very vulnerable place during this period. If you notice that your dog cries when carrying toys, or chewing food, the reason might just be - teething! Gums in dogs are extremely irritable during puppyhood. It is common to see spots of blood in your puppy’s mouth due to irritation, or excessive chewing. In order to mitigate these symptoms, you can use chamomile, natural ointments, or some other vet-approved supplements that will help your puppy go through the teething period easily.