Sorry but the vet is talking rubbish, if your dog has regular problems with the lip folds I would thoroughly recommend it, 3 of my 7 spaniels (over 40 yrs) have had the op, in all cases despite what the vet says, it was great, the dog didn't even notice the op , having had sore lips for so long, it healed very quickly and I never had any further lip issues at all, try a different vet....probably better than throwing antibiotics at them with all the side effects possible. Would certainly recommend with a decent vet