Yikes! Some of the stuff they sell for dogs is awful. These little ones are really affected by this stuff. Thank goodness it was not worse.
Remember in the future not to give in to peer pressure! Better to just simply say thanks, but no thanks, he has a sensitive stomach. You can try to explain why, but I find that many people don't want to know about what they feed. When I go to the bank they know not to give my pups treats...I simply lied a few times about how they get car sick...and now they know!
I just don't know what they are giving out but I don't want to come of rude to them.
Your vet sounds great...doing all the things that make total sense! I am sure he will be much better very soon!