I feel for you raygezer, BUT if he gave him antibiotics (chances are he did), then at least he got the right meds. He should have written down on his 'visit' form exactly what he gave him, and what he has told you to do re follow up meds. This will also tie in with your facture when you receive it.
What are the meds you have to administer? I've given under the skin injections so if you are close am happy to pop by.
Is the lamb feeding ok? If the vet didn't say anything you need to know, ring (or go there again) and ask any questions you may have, and don't be put off by his fast-back replies. All Fr vets have to have a certain amount of English to pass their exams - even if they don't like to use it. Between you, with a melange you will get the info you need to know.
Best wishes.