Answer

Hi,
You can give Immodium for several days in a row. Can you tell me how many mgs per ml is in the children's solution?

It is also possible that your dog has a "bacterial overgrowth" in the intestines from the bark/sap and/or the stress of travelling. I would continue with the rice and chicken, but you may need some antibiotics (metronidazole) from your vet to clear up the diarrhea if the Immodium and bland diet don't do the trick. You might also try adding a probiotic to her food once a day (I use Fortiflora), which will help repopulate her intestines with "healthy" bacteria.

The other concern in a young dog with diarrhea is intestinal parasites. She may still have something like roundworms or coccidia that didn't cause any problems until she got stressed. It would be good to take a fresh sample of the soft stool to your vet for analysis. I would take your dog, too, as little Yorkies can get dehydrated pretty quickly when they have diarrhea.