TL;DR: Intense paw chewing is typically caused by allergies, parasites, or anxiety and should be evaluated by a veterinarian within 24–48 hours to prevent painful secondary infections.
Why is my dog chewing their paws until they are raw?
When a dog chews their paws until the skin becomes raw, it is usually a manifestation of intense itching or localized pain. This behavior is often linked to allergic reactions (environmental or food-based), parasitic infestations like mites or fleas, or even psychological triggers such as boredom or separation anxiety. As the dog continues to lick and chew, they damage the skin barrier, which frequently leads to secondary bacterial or yeast infections that cause even more irritation, creating a painful cycle.
Is paw chewing a veterinary emergency?
- The urgency level for this condition is Medium; while rarely life-threatening, it indicates significant pet distress.
- You should aim to see a veterinarian within 24 to 48 hours to prevent the development of a deep tissue infection (cellulitis).
- Seek immediate care if the paw is severely swollen, oozing pus, or if your dog has a fever and is refusing to eat.
How does sending a photo of the area help with veterinary triage?
- Allows a veterinary professional to perform an initial assessment of the severity and inflammation.
- Helps the triage team identify visible swelling, discharge, or foreign objects like thorns or grass seeds.
- Serves as a baseline to track whether the inflammation is spreading or improving once treatment begins.
- Provides a clear picture of the primary skin lesion before further licking causes additional damage.
Clinical Context (Merck Veterinary Manual)
Excessive paw chewing in dogs, leading to raw skin, is often indicative of pruritus, which owners may misinterpret as simple licking behavior. The underlying cause can range from parasitic infestations (fleas, scabies), allergic skin disease (atopic dermatitis affecting the face and feet), or secondary bacterial or yeast infections. Interdigital furunculosis, characterized by inflammation and infection between the toes, can also be a cause, potentially triggered by traumatic implantation of hairs into follicles. Addressing concurrent bacterial infections with antibiotics (e.g., cephalexin 30 mg/kg, PO, bid) and fungal infections with systemic antifungals (e.g., ketoconazole, itraconazole, or fluconazole 5-10 mg/kg/day, PO) should be considered before pursuing more extensive allergy testing.
Chapter: Dermatology, Infectious Disease
Source: The Merck Veterinary Manual, 11th Edition (Page 844)