Sarcoptic mange is a highly contagious skin disease found in dogs. These mites will burrow through the skin causing intense itching and irritation. The scratching that results from mange is what causes the majority of the animal's hair to fall out. This is a treatable medical condition, but is highly contagious for other animals and humans. Pet owners are advised to keep the dog quarantined while it is being treated for mange. Dogs that have a non-seasonal form of sarcoptic mange will likely be treated with a scabicide -- a drug that kills the itch mite. In some cases, the animal will be dipped in a scabicidal shampoo to kill all of the mites living in its skin. Ongoing treatment is necessary to kill all of the mites as the eggs will take time to hatch, and most treatments do not kill the eggs, only the living mites. Complete response to the therapy may take between four to six weeks. Also, because of how contagious this type of mange is to humans and other animals, it is recommended you limit contact with the dog. In extreme cases, quarantining the animal may be required.
Humans who do come into contact with a dog infected with mange may develop a purplish rash on their arms, chest or abdomen. The issue will typically clear up once the dog with mahas been properly treated.