
Hi vikc32
unfortunately many new owners feel the need to move away from the breeders' advice on feeding almost as soon as they bring their new puppy home and this is the result. Even keeping to the same diet, a change of water and also the upset of leaving dam and siblings can cause pups to go off their food and have upset tums.
Since your vet has added worming and ABs to the mix of an overactive GI system it's not surprising the problem is still apparent. I'd skip two meals and then feed two very small meals later today of the bland food the vet gave you and then tomorrow move onto four small meals etc.
Personally I wouldn't advocate adding any supplement of any type to the puppy's diet right now - it will just be something else for her to react to.
Providing she is drinking sufficiently and keeps bright as you've described then hopefully she shouldn't need a return to the vet but keep a very close eye on her as youngsters can go downhill very quickly, particularly through dehydration.
When you do begin to introduce food other than Hills tinned to her make it something bland and stodgy like overcooked rice and add some steamed white fish to it. Gradually over a few days reintroduce your chosen kibble in small quantities to allow her insides to cope with it on a gentle basis.
HTH, good luck Teri