Hello:
Could I have a little information please?
-Which test? and what was the result?
-Does your dog ever get ticks?
-Has she had an X-Ray done?
-Has she been on any medication?
Thanks,
Dr. Lisa
Sorry to have more questions but this may help us help you.
Her paws are raw and show signs of bacterial infection?
Was she tested for tick carried diseases? (some ticks are pinhead size and hard to find)
What food have you been feeding her?
Did the vet check for intestinal parasites?
Does the prednisone help her stop itching?
Have you used any lawn chemicals or added cedar mulch to your yard?
Anything new in the house or outside since before this started?
I'm thinking she may have a food sensitivity which is making her itch and is keeping her from eating resulting in her being thin but the fever may be related or due to another health issue. Because the prednisone helped the itching etc that could be an indication there is an autoimmune issues such as an allergy.
You can read here about inflammatory bowel which can go along with food sensitivity
http://www.marvistavet.com/html/body_inflammatory_bowel_disease.html
You can read about autoimmune diseases that will respond to prednisone here
http://www.canismajor.com/dog/autoimmn.html
and these diseases such as lupus, pemphigus and polyarthritis can have a fever with them.
Paw licking, itching and skin chewing are often signs of allergies. You may see red staining to the fur in the licked areas or raw spots where the dog chews itself.
The skin itches from allergies, the dog licks and chews trying to soothe the itch, making the skin raw and allowing other infections to set in which may itch even more.
You can read about allergies and dermatitis in dogs here
http://www.lbah.com/allergy.htm
http://www.priory.com/vet/vetatop1.htm
Dogs can develop allergies to foods, even ones they eat all the time, and to inhaled items, and contact allergens such as rug cleaners, cedar beds, or chemicals including lawn chemicals or even flea bites.
You might want to try a different dog food that has no ingredients the same as what you feed now. Diets of Fish and Potato, venison, or rabbit etc. where the protein source is new and there are no grains in the food can work for many dogs for example. Another option is the hypoallergenic diet from your vet Hills ZD. Changing food does no good if you feed the same ingredients. Remember food changes have to include all treats and supplements. It can take 8-12 weeks or more before you see results in skin and coat.
If this is an inhalant allergy you may find using a HEPA air filter in the room the dog uses most and wiping the dog down with a damp towel when it comes in helps reduce allergen exposure.
You might want to see if some plain Benadryl helps with the itching. A common low dose is 1mg per pound of dog every 12 hours. Do check with your vet about using a med but this one or another may help him a lot. If you choose to use that please read here about cautions
http://www.petplace.com/drug-library/diphenhydramine-benadryl/page1.aspx
You may want to consult with your vet and consider doing allergy testing.
You can try a Chlorhexiderm shampoo from the pet supply store in case the problem is a bacterial skin infection. Malaseb is another good one to eliminate yeast from the skin. Follow directions on the bottles if you try one.
Dogs can have low thyroid level issues and that can trigger skin allergies. The vet can check for that with a blood test.
If your dog is not on a flea prevention that might also help. Just one flea bite can make an allergic dog itch all over. If that is the problem then Frontline could resolve a lot of the reactions for you.
Some people find their dogs do better when they are given omega 3&6 fatty acid supplements such as Derm Caps or Linatone from the pet supply store.
If your regular vet is not able to help you then you may want to see a veterinary dermatologist and this page may help you locate one if your vet can't refer you to one
http://www.acvd.org/
Hope this helps you!
Dog Expert:Rescue, Train,Breed,Care
30+ yrs dog home vet care & nursing, rescue, behavior&training, responsible show breeding, genetics