My dog Corea was recently adopted by my boyrfriend and I from a shelter in April. When we adopted her she had no hair and thousands of bumps on her skin as a result from a severe infection of mange. She was deemed cured in August and received all the shots necessary after she was off her treatment. She had a beautiful coat and was healthy. However, in the past two weeks she started getting bumps on her skin and losing her hair. We gave her a bath with some oxydex hoping it would help but it only worsened. We also wiped her with some Clearasil wipes and that seemed to help. But, this morning we found she ha some black pimples and when we took a closer look it seemed like black pus was coming out of some of her pimples. What does this mean? Does she have mange again?
Note that we did recently find out that our building had a bed bug infestion and we have thrown out the matress and done extrenous cleaning of our apt. Could this be due to bed bugs? Help.
Pimples and hairloss mean there is infection in the hair follicles. The 3 kinds of infection are bacteria, demodex, and dermatophyte (ringworm). With your dog's history, a recurrence of the demodex mites and a secondary bacterial skin infection are most likely. I recommend taking your dog into your veterinarian this week for skin scrapings. If demodex is found again, then treatment will need to be restarted. Options are topical amitraz every 1-2 weeks, ivermectin orally daily, or milbemycin orally daily. Regardless of the treatment, medication is continues until no live or dead mites are found on skin scrapings, and then one more month for insurance; the average duration of treatment is 3 months, and dogs will look normal 1-2 months before they are cured, so monthly skin scrapings are important to evaluate when it is safe to stop treatment. The most common reasons for demodex recurrence are stopping treatment too soon, or using too low a dose of medication, but in about 10% of dogs, a poor immune system makes the mites recur each time medications are stopped despite appropriate therapy. In these dogs, antiparasite treatment such as daily ivermectin or milbemycin is given for 3 months, and then on Mon/Wed/Fri for long term control. Hopefully this will not be the case with your dog, and with luck one more prolonged course of therapy will cure her this time.
Kimberly Coyner, DVM DACVD
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.