Take the dog to the vet. Different type treatments may be required - Injection, oral, shampoo.
Most times, if a dog has a staph infection, there is another underlining problem as well.
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CoonDawgs.com - A Site Designed for Coon Hunters
American Houndsmen - Vintage Hound Hunting
Coon Dog Cemetery - Key Underwood Coon Dog Memorial Graveyard
HuntingBassets.com - A site dedicated to hunting with Basset Hounds