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Why is my dog's chronic skin disease spreading and causing baldness?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | 8 years and 6 months old | 28 lbs

Hello, for the last 3 years a skin disease has been spreading on my dog's entire upper part of the head, to the ears and the back. During this time we've visited a big number of veterinarians which either make the skin problem spread even more or they didnt help at all. Most of them said that we should put her on a special diet, but even after months and months of trying, the skin problem just gets worse. My dog's head is now bald and i just feel helpless. Please help.

1 Answer

Most Helpful Answer

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Answered By Silvia De Cecco, DVM, MRCVS

Veterinarian

Published on February 8th, 2018

Poor Lily. If you already tried many different medication without success is probably because the skin disease doesn't have a name yet! I would suggest not to try any other therapy but to try to diagnose the disease. Focal alopecia (hair loss) can be a sign associated to different skin diseases. The most common are: Demodicosis (parasitic infection), dermatophytosis (fungal infection), immuno-mediated diseases, medication application site, alopecia areata (uncommon). Further test are needed to make a diagnosis and prescribe the correct treatment. Your vet might perform a skin scrape to check for parasite and collect a sample to exclude a fungal infection; further test might be needed depending on the results of the ones mentioned. If those basic tests are negative, a biopsy and a allergy testing under general anaesthetic/sedation might need to be performed to reach the diagnosis. I would suggest to refer to a veterinarian specialist in dermatology
 because Lily's case seems quite challenging. Good luck and do not hesitate to post again on the forum or request a consultation if you would like to discuss it any further. I hope this answer was helpful.

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