Can I give benadryl to my dog with a bad tooth?
Indeed so as geguz previously stated. Human pills and medicines are only made for humans, and you should never try to experiment yourself to avoid paying for a vet. If you can't support a vet the best thing to do is not get one.
no. that is very bad for them and toxic. If you care about your dog you will bring him to the vets
consult your vet.