When I see a dog with these symptoms and diagnose gastroenteritis (an inflammation of the stomach
and intestines) then my usual treatment plan is as follows:
1. When she has an episode of diarrhea, you should WITH-HOLD FOOD! Do not offer her regular food for 24 hours. This gives the intestines a chance to rest and heal.
2. When she is fasting, she can have lots of clear fluids.
So, water is fine, but also she can have pedialyte, Gatorade, apple juice diluted 50:50 with water, or onion free chicken or beef broth diluted 50:50 with water. Give the fluids in small amounts frequently. For a dog this size that means about 1/4 cup an hour.
3. After 24 hours if the diarrhea has stopped, you can start your dog back on a bland diet.
For patients that I see, I recommend a mixture of 75% cooked white rice, and 25% low fat protein. For the protein you could use extra lean ground beef, boiled with the fat scooped off, or chicken breast boiled with fat scooped off or even scrambled egg cooked without fat in the microwave. Feed small frequent meals. For a dog this size, I would suggest 2-3 tablespoons every 3 to 4 hours.
4. After 1-2 days on the rice mix, you would gradually change your dog back to the normal diet and food. So, on day 3, give the rice mixture, but bigger meals, spaced further apart. On day 4, mix a little tiny bit of the normal food in there, and decrease the frequency so it is down to 3 meals or so. And so on.
5. Keep your dog as quiet as possible - just out to relieve herself and back in.
Another thing which I should mention is that in patients that I see, I quite often prescribe Imodium (loperamide) to help resolve diarrhea, as long as the dog is not a herding breed like a border collie. It is quickly effective, and I have people use it for 3 or 4 days. More here about it, including dose:
The other thing that I wanted to mention is that if your girl were my patient, I would put her on a probiotic. They are very safe and help a lot of dogs! It just helps to promote the growth of "good" bacteria and reduce the "bad" bacteria in a natural and safe way. You can use FortiFlora products which are available from your veterinarian, or you can use Culturelle which is available at pharmacies in the USA. For the Culturelle, a 2lb dog would get 1 capsule daily sprinkled on her food.
Here are links:
If your girl continues to have diarrhea, starts to pass blood or mucus, or begins vomiting, or loses her appetite, then a call to your vet would be in order. Your vet may want to start her on metronidazole which is very quickly effective at helping to make dogs with gastroenteritis feel better.
I hope that helps you. If this has been helpful, please hit the green "Accept" button and leave feedback.
If you need more information, just click on reply and I will still be here to provide it!
The above is given for information only. Although I am a licensed veterinarian, I cannot legally prescribe medicines or diagnose your pet's condition without performing a physical exam. If you have concerns about your pet I would strongly advise contacting your regular veterinarian.