Dog Skin Conditions: Demodectic Mange

The cause, symptoms, and treatment of demodectic mange (“red mange”).

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Demodectic mange
Photo courtesy David A. Senter, DVM

Cause: Demodex canis, a mite normally found in small numbers on canine skin. If a dog’s immune system isn’t functioning normally, the mites can multiply and cause overt disease (demodectic mange).

Symptoms: In puppies, localized Demodex infection causes small isolated red hairless patches that may itch. Generalized demodicosis causes widespread hair loss and itching, as well as thickened, wrinkled, and scaly skin. Secondary bacterial and yeast infections are common with generalized demodicosis.

Treatment: Localized demodicosis in puppies usually clears up without treatment as the immune system develops. Treatment of generalized demodicosis starts with treating the underlying health condition that allowed the mites to proliferate. The mite infestation is treated with dips and/or oral medication such as ivermectin or milbemycin, along with antibiotics to treat any secondary bacterial infection. Successful treatment may take four months or longer. In some older dogs, demodectic mange can be controlled, but not cured.

Disclaimer: DogChannel.com’s Dog Skin Conditions are intended for educational purposes only. They are not meant to replace the expertise and experience of a professional veterinarian. Do not use the information presented here to make decisions about your dog’s ailment. If you notice changes in your dog’s health or behavior, please take your pet to the nearest veterinarian or an emergency pet clinic as soon as possible.

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Give us your opinion Give us your opinion on Dog Skin Conditions: Demodectic Mange

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donna   medford, NY

7/5/2011 5:20:43 PM

my vet has recommended clavamox for what looks like your description. will this work my poor pup has had all his toys removed no treats and food changed twice. ive had him a few months and feel bad for him only six months old he wants to play. please reply. he has been to the vet numerous times.

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stephanie   ragland, AL

12/10/2009 9:24:24 AM

we have been using NuStock for atleast 4 months now and our poor pup isnt getting any better, she looks like shes getting worse..

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Paul   New York City, NY

4/12/2009 12:30:48 PM

You are in urgent need of information and treatment of plain old dog alapicia. Your skin conditions totally useless.

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Monica   Texarkana, TX

11/24/2008 4:15:59 PM

Good article. My puppy was diagnosed with red mange by his vet. He was put on ivermectin, but after almost a month, my husband and I didn't really see a huge difference in his suffering. We did some research and found NuStock. We got it from our local feed store. In two weeks, he was back to himself--playful, fluffy and fun. I would recommend it whole-heartedly. He didn't finish the ivermectin. Thanks!

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