NORMAN — Dear Dr. Fox: We are at our wit’s end with our 14-year-old Chihuahua/rat terrier. He is having some sort of reaction and, according to our vet, is producing too much yeast.
We have been taking him to the vet for a monthly allergy shot, bathing him weekly with Pharmaseb Shampoo and feeding him Hill’s Prescription z/d food in addition to a small amount of homemade chicken and vegetables. His whole belly is like alligator skin, and he is losing hair on the top of his back.
Besides the expense of the monthly trip to the vet and the shot, the food is expensive, too. Now the vet is suggesting an allergy test that would cost $500, along with keeping my dog on a serum for the next several months, which would cost $325 every three months.
Is there anything else we can try? This poor little dog spends three-fourths of the day scratching. He even stops to scratch before going out for a pee in the backyard. His ears are also inflamed.
Do you have any suggestions?
— J.F., Palm Beach, Fla.
Dear J.F.: First, has mange, a skin parasite, been ruled out? Next, consider hypothyroidism, which in older dogs is often combined with Cushing’s disease.
The possibility of an underlying food ingredient allergy or intolerance remains, and one of the problems with these expensive prescription diets is that they often contain additives and other ingredients as well as contaminants.
I would put your dog on a “detox” diet of three parts boiled brown rice or quinoa; two parts ground lamb or white fish; and one part chopped green beans for three to five days. After that, transition him onto a boiled potato and white fish diet with a pediatric multimineral or multivitamin tablet and a few drops of fish oil mixed in.