How to Stop Your Dog from Licking Walls

Check for Medical Causes First

Before assuming the licking is behavioral, consult your vet for a thorough exam. Bloodwork, urine tests, and a dermatology evaluation can rule out conditions like hypothyroidism, which has been linked to compulsive licking. In one case, a dog’s flank-sucking behavior improved only after medication corrected a thyroid imbalance. Never ignore physical signs—licking can cause sores that trigger endorphin release, making the behavior self-reinforcing.

Increase Exercise and Mental Stimulation

Dogs with obsessive licking often lack sufficient physical and mental outlets. Boost daily aerobic exercise and provide engaging activities like tricks classes, musical freestyle, or advanced obedience. Even if your dog isn’t a natural performer, the process of learning keeps their mind occupied. Puzzle toys, stuffed Kongs™, and automatic treat dispensers can offer mental challenges when you're not home. These tools help redirect focus from licking to productive tasks.

Redirect with Positive Reinforcement

Use positive training to replace licking with incompatible behaviors. For example, teach your dog to lie down with their head on a cushion or fetch a specific toy when they feel the urge to lick. Reward these behaviors consistently with treats or praise. Avoid punishment—this can increase stress and worsen the habit. Instead, interrupt the licking with a distraction (like a command or toy) and guide them to the new behavior using clicker training or food rewards.

Manage the Environment and Triggers

Limit access to licking triggers when you can’t supervise. An Elizabethan collar (cone) can temporarily prevent licking while you investigate causes or implement solutions. For example, if your dog licks walls during quiet times, keep them in a controlled space or use the cone until you can redirect their attention. Also, manage your home environment—avoid situations that trigger fixation, like bright reflections or metal surfaces that attract attention.

Consider Professional Help and Medication

If the behavior persists, work with a qualified behavior consultant. They can help you create a consistent, reward-based program. In some cases, medication like Clomipramine (Anafranil) or Fluoxetine (Prozac) may be recommended to reduce compulsive urges, especially when combined with behavior modification. These drugs are not a cure but support long-term change. Always taper off under vet supervision to avoid rebound behavior.