Cephalexin

• Cephalexin is inexpensive and commonly used to treat staph infections. It is only available in oral form and sold under the brand names Keflex and Celaxin.
  
  

Clavamox

• Clavamox is expensive. It works not only for staph infections, but also respiratory infections. Its main drawback is that if the dog has a weak stomach, it can cause vomiting.
  
  

Baytril

• Baytril is prescribed when the staph infection is already serious. It is a very strong antibiotic and is used especially for wounds. It is moderately expensive.
  
  

Erythromycin

• Erythromycin is an inexpensive antibiotic that is also used for treating staph infections.
  
  

Antibiotics to Avoid

• The following common antibiotics are not effective against staph infections: penicillin and amoxicillin.