Welcome! I am Dr. Altman, a licensed veterinarian and I am happy to answer your questions.
So sorry to hear Buster has this spot on his chest!
If it is an area he can reach to lick then he has to wear a cone to stop the behavior because the oral bacteria will definitely cause an infection where there might not be one
You can use an oatmeal-based dog shampoo for ten minutes twice daily initially over the area to reduce any debris and infection then taper as it improves
I do not tend to use ointments or salves, it tends to lock in moisture and not allow the wound to drain and dry out
If itching you can use 1 mg/ pound benadryl every 8-12 hours to help reduce itching. This might initially cause mild sedation
If you can photograph the area with a ruler once daily to monitor for improvement that would be great as well
But if there is no improvement or it is progressively getting bigger then it is time to have your veterinarian evaluate the spot to ensure there is nothing that requires therapy such as a prescription shampoo, antibiotics or antifungals to resolve the lesion
So, keeping the lesion clean and dry with bathing and preventing licking and if there is no change then it is time to have your vet evaluate the area to ensure further therapy is not needed
Please let me know if this information makes sense and any additional questions I can assist with today
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