anitbiotics by mouth

To get pill you will have to go to the vet, and usually antibiotics are given twice a day by mouth, and the amount will depend on the size of dog,
Usually as an example for punctures/cuts bad enough to need antibiotics, I give the Cephalexin 250 mg twice daily for a ten day stretch. Some dogs will swallow a pill hidden in a weiny or wrapped in cheese slices, but others will pick the pill out and eat the good stuff, you have to make sure that the pills are swallowed and that you stick to keeping it in their system for the 10 day period to be as effective

I also collect left over antibiotics from family members that re not used to keep on hand, so I can start the dog immediatley when needed then can get some more from my vet when its not emergency visit.