If he is dehydrated and or hypoglycemic with this kind of diahrrea he needs to be seen by another vet(especially if you doubt competence).
I have a very small yorkie and when she threw up a few times one morning I took her in and they gave her fluids because she was already a little dehydrated from throwing up.
Probably the best advise is to take him in to another vet this morning. Teri is right, they can go downhill very very fast. |