Don't think the vets always give drugs...my chunk went to the eye hospital for his check up, and they mentioned steroids to reduce the vascular look of the graft. Final conclusion was no, he is young and the graft will thin out with age so no...I think this is best
I've often wondered the same thing. Seems every time I've taken mine to the vets they've come away with antibiotics. I remember taking Rupert to the vets for something and the vet noticing a minor injury on his leg. I knew about it, had cleaned it and it was healing well but the vet wanted to give him antibiotics for it "just to be on the safe side" I refused them but had strict instructions to take him back in a weeks time so the vet could check it (no charge as it was classed as a follow up visit).
Weird... Over the last 40 years I've only once had a vet prescribe antibiotics for one of the dogs, and yet every time I take a human member of the family to a doctor, the knee-jerk reaction is Must Have Antibiotics.
Antibiotic use in humans needs to be carefully weighed up because of the possibility of antibiotic resistance. There are already some antibiotic resistant strains of existing diseases such as TB and E.coli. As has already been said there's a problem with people being prescribed antibiotics and then not bothering to take the full course which helps build up the resistance.