Accepted Answer

Thanks for the additional information. This is not a typical reaction to the revolution, as the hair loss would be typically localized in the areas of application. Your vet could be correct, and this might be an allergy. Most commonly it is a contact allergy to the grass )(some dogs are just allergic to it, there does not need to be any chemicals on it). Buying some baby wipes and wiping her paws down each time she comes in may solve the issue if she is allergic to grass. I am concerned about something more serious though. Hairloss, redness and itching of the feet can sometimes be symptoms of a demodex infestation. Demodex is a mange mite that some dogs have trouble with. It is notoriously difficult to diagnose because the mange mites can be very hard to find. It will be necessary to have a vet perform a skin scraping of the feet, and some hairs should be plucked out as well, since the mite likes to live in the hair shaft. This mite can only be treated with medicines from a vet, and must be undertaken under strict veterinary supervision. Please see the following website for more informaton on demodex.

 

http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=630

 

Your pup needs to go back to the vet, you may want to see a different vet if you are not comfortable with the one you saw last time. Please let me know if I can be of further assistance. If this has been helpful, please hit the green accept button. Best of luck with your puppy :)

Expert:	ERAnimalNurse
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Answered:	10/24/2009

Emergency Critical Care Nurse

16+ years of veterinary experience