Canine ringworm is a fungal infection that often forms a ring shape under the skin. It is not a life-threatening condition and often clears from a dog's system without treatment. Because ringworm is infectious and may infect humans, however, quick eradication is advised.
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Internal Treatment
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The drug griseofulvin often is used in the treatment of ringworm. The drug comes in tablet form and is administered to the animal every 30 days. Because fat needs to be in the digestive tract in order for griseofulvin to be absorbed, it is suggested that griseofulvin is administered with canned dog food. Caution is suggested; the drug may cause birth defects and should not be given to pregnant dogs.
Skin Treatments
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Topical anti-fungal treatments can be prescribed by a veterinarian. A challenge facing pet owners is keeping the dog from licking the cream from its skin.
Bathing
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Repeated bathing with anti-fungal shampoos treats ringworm. This removes the fungal spores from the fur and skin of the dog. Three treatments every second day are recommended. The lather should be left on the dog for at least five minutes.
Fur Removal
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Shaving the infected area removes ringworm spores. This may be an effective choice for dogs that do not tolerate topical skin treatments or frequent baths.
Preventing Re-infection
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All surfaces the dog comes in contact with should be disinfected with a bleach mixture. This not only prevents re-infection of the dog but prevents the spread of ringworm to human inhabitants of the home.
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