Dog Skin Problems: Common Causes and When to See a Vet

Common causes

• Environmental or food allergies
• Fleas or flea allergy dermatitis
• Hot spots — localized, often fast-developing irritated patches, frequently from licking or scratching
• Mange (mites)
• Bacterial or yeast infections, often secondary to another underlying cause

Signs worth a vet visit

• A rash or irritated patch that's spreading quickly
• Visible hair loss in one or more spots
• Open sores, scabbing, or a noticeable odor
• Intense itching that's disrupting sleep or daily activity
• Red, inflamed skin that looks painful to the touch

What you can do while you wait for an appointment

Keep the area clean and try to prevent your dog from licking or scratching it further — an e-collar can help if it's accessible and irritation is already significant. Avoid applying any human skin products or medications, since many are unsafe for dogs.

When it's not urgent, but still worth a visit

Most skin problems aren't emergencies, but they rarely resolve completely on their own if there's an underlying allergy or parasite involved — and skin that's left irritated for too long is more prone to secondary infection. A routine vet visit, rather than an emergency one, is usually the right move for ongoing or recurring skin issues.