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Dr. Peter
Dr. Peter, Veterinarian
Category: Dog Veterinary
Satisfied Customers: 30561
Experience:  16 years of internal medicine, surgery, and preventive care.
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My dog has dark (black) spots on his underbelly and he itches

Resolved Question:

My dog has dark (black) spots on his underbelly and he itches all over very badly. what could this be?
Submitted: 7 years ago.
Category: Dog Veterinary
Expert:  Dr. Peter replied 7 years ago.

Hi, I am Dr. Peter and would like to help.


1- How long has this been going on?

2- What food is he on now?

3- What was his old food?

Customer: replied 7 years ago.

It has been going on about 3 months

He is on IAMS Lamb

He was on Science Diet sensitive stomach

Expert:  Dr. Peter replied 7 years ago.

1- Can you rub the tips of his ears against each other for 20 seconds and see if this will make his back legs move has if he wanted to scratch?

2- Is he licking his paws?

3- Did he get better on the cortisone?

Customer: replied 7 years ago.

Nothing with the ears

no chewing or biting (licking paws)

cortizone helped some but not fully, and when it wore of it was much worse.

Expert:  Dr. Peter replied 7 years ago.

It seems he may be having allergies. Dogs when allergic to environmental or food they develop itch in the skin. The darkening of the skin is the result of chronic inflammation, probably as a result to allergies. I would recommend you put him on a low allergen food like hill's z/d for at least 6 weeks. During that period he should not eat anything else or the trial will not work. In addition, speak to your veterinarian about putting him on Temaril-P which is a combination of an antihistamine and a low dose of cortisone. This will make him feel better until you completely wean into the z/d.


If you have additional questions I will be glad to answer them.


Dr. Peter

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