We gave Axel (12 weeks) one of those pigs ears for a treat, which he enjoyed and devoured. Anyway's he got sick from eating it 3 hours later diarrhea and vomitting, loss of appetite and not drinking. We phoned the vet (next day) and they said bring him as they were worried about dehydration. He was put on antibiotics due to Clostridium Perfringens (which i never heard of) bacteria of somekind. Anyway's he is doing better, may have been caused from the pig ear, vet was not sure, but stated some puppies have sensitive digestive systems and the dye on the pig ear can be a problem for some puppies. Anybody else have any problems with those pig ears?