How to Feed a Sick Dog. Part of the series: Puppy & Kitten Care. If you have a sick dog and your veterinarian allows you to feed it at home, you can try a feeding syringe, baby food or special diet formulas to help it eat. Learn how to nursemaid your dog in this free video on puppy and kitten care. Read more: http://www.ehow.com/video_8405846_fee...