My hamster has made him injured

Hi. My hamster had stucked his arm in his cage and injured it. A vet prescribed oral antibiotics and multivitamin for him. Plus two kinds of ointment to rub on his arm. But when I apply the ointment he starts to lick it. Is it ok to give multivitamin to a hamster? Should I stop applying the ointments or not?

Hello - I'm afraid that you have put me in a difficult position here.  You have not told me the problem with your hamsters forelimb.  I don't know whether it is broken, infected, scratched, the muscle pulled, dislocated or what - so I cannot tell you the appropriate way in which to look after it.  Your vet will have hopefully examined your hamster, identified what the problem with the limb is and then prescribed appropriate treatment or support for the injury.  I cannot even visualise this injury, so I am in no place to comment on your vets' treatment.  Multivitamins appropriate to very small hamsters are obviously very different from vitamins appropriate for other animals (never use human ones) and again, I have no way of knowing from such a broad description online whether you have been given something suitable or not, or even what was necessary.  Except that, you say it has been prescribed by a vet.  In the UK at least, vets are answerable for the appropriateness of any treatment we give - the first principle of medicine is to do no harm.  If you have reason to doubt the veterinary treatment that you are getting, you should be able to speak to your vet to clarify any issues (this may require a second consultation) and / or request a second opinion with a specialist if need be.  I hope that something here is helpful.