Dermatitis due to skin allergies

From: Arlene with dog Skippy
Breed: Pom/Schitzu

Pet Symptoms:
My 9yr. Old Pomeranian/Schitzu dog has a red boil between his toes. It’s tender to the touch and about the size of a small grape. I’ve been watching it for a couple of weeks to see if it would heal on its own. No such luck. What shall I do?

Tried:
Nothing yet.

Our Advice:
This is probably dermatitis due to skin allergies or fungal or bacterial infection. I would advise you to contact your vet for an appointment.