Staph Infections In Dogs: Prevention And Treatment Guide

Practical steps to keep your pup’s skin healthy and minimize bacterial flare-ups.

By Anjali Sayee
Created on

Staph Infections in Dogs: Comprehensive Guide to Prevention and Treatment

Staphylococcal infections, often called staph infections, are among the most common bacterial ailments affecting dogs. While mild cases may cause only local skin irritation, severe or untreated staph infections can endanger your dog’s overall health and require urgent veterinary intervention. This comprehensive guide explores the symptoms, causes, diagnosis, treatment, and prevention of staph infections in dogs, helping you protect your canine companion’s health.

What Are Staph Infections?

A staph infection in dogs is typically caused by the Staphylococcus genus of bacteria, with Staphylococcus pseudintermedius being the most common culprit. These bacteria can affect various body systems but most frequently cause skin and ear issues. Staph infections may range from mild superficial irritation to deeper tissue involvement, each requiring different levels of attention and care.

How Do Dogs Get Staph Infections?

  • Compromised Skin Barrier: Minor cuts, scrapes, or wounds allow bacteria to invade.
  • Chronic Allergies: Dogs with allergies (food, environmental, flea) often scratch, lick, or bite themselves, breaking the skin and opening the door for infection.
  • Underlying Illness: Conditions affecting the immune system or existing skin diseases make dogs more susceptible.
  • Poor Grooming or Hygiene: Lack of regular bathing, brushing, or cleaning can increase risk, especially in breeds with skin folds.
  • Exposure at Parks or Kennels: Dogs can contract staph infections through contact with other infected dogs or contaminated environments.

Signs and Symptoms of Staph Infections in Dogs

Recognizing a staph infection early is crucial to prevent its spread and avoid complications. Symptoms may depend on severity and location but often include:

  • Patchy fur loss with moist, reddened, or crusty skin
  • Pain and inflammation, with the skin feeling warm to the touch
  • Excessive itching, chewing, or licking
  • Crusting or peeling of the skin
  • Pus-filled lesions or pustules – sometimes called pyoderma
  • Dry flakes and scaling
  • Hot spots (acute moist dermatitis), commonly found on the neck, cheeks, or hips
  • Infections in eyes, ears, or respiratory tract (in advanced cases)

More severe cases may also present with fever, swelling, lethargy, and signs of systemic illness. In rare, untreated situations, staph infections can lead to blood poisoning (sepsis) and become life-threatening.

Types of Staph Infections in Dogs

TypeDescriptionCommon Symptoms
Superficial Staph InfectionInvolves only the outermost skin layersRedness, hair loss, flakes, mild pustules
Deep Staph InfectionExtends deeper into skin layers and hair folliclesPain, swelling, pus, oozing, disruption of skin surface
Systemic Staph InfectionRare but serious, spreads through bloodstreamHigh fever, lethargy, organ involvement
Staph HypersensitivityAllergic reaction to staph bacteriaSevere, recurrent symptoms even after treatment

When to See the Veterinarian

If you notice one or more of the above symptoms persisting beyond a day or two—especially increasing redness, swelling, oozing lesions, or signs of discomfort—schedule a veterinary appointment immediately. Staph infections can progress quickly in dogs, and early treatment gives the best prognosis.

Diagnosing Staph Infections in Dogs

Diagnosis of a canine staph infection involves multiple steps:

  • Physical Examination: The vet will examine the lesions, skin, and overall health.
  • Medical History Review: Including onset and progression of symptoms, previous infections, allergies, and immune conditions.
  • Lab Tests: Biochemistry profile, complete blood count (CBC), and urinalysis may be performed to rule out other issues.
  • Skin Scrapings and Cytology: Swabbing the affected areas and examining cells under the microscope to identify bacterial presence.
  • Culture and Sensitivity Tests: In chronic or unresponsive cases, the vet may culture bacteria from the lesions to determine which antibiotics will be most effective.
  • Skin Biopsy: Sometimes needed to confirm diagnosis and rule out other dermatologic diseases.

Identifying any underlying conditions—such as allergies or immune problems—is equally important for crafting an effective treatment plan.

Treatment Options for Staph Infections in Dogs

Topical Treatments

  • Medicated Shampoos: Products containing chlorhexidine, benzoyl peroxide, or ethyl lactate are often recommended. Frequent bathing—sometimes daily at first—can help clear superficial infections.
  • Sprays and Ointments: Antibacterial creams and sprays can be applied directly to localized lesions to speed healing and reduce bacterial burden.

Systemic Antibiotics

  • Oral Antibiotics: For more significant or deep infections, veterinarians commonly prescribe oral antibiotics, such as cephalexin or clindamycin. Courses may last several weeks and must be completed even if symptoms appear to resolve sooner.
  • Injected Antibiotics: In serious or rapidly spreading cases, injections may be administered in-clinic or hospital.

Ongoing Care and Home Strategies

  • Follow Application Instructions: Complete the full course of both topical and systemic medications to prevent recurrence or resistance.
  • Repair Skin Barrier: Resolving the underlying problem—whether allergies or external parasites—is necessary to prevent repeat infections.
  • Environmental Management: Disinfect bedding, toys, and grooming tools frequently. Manage your dog’s environment to minimize allergy triggers.

Never discontinue treatment early, even if your dog looks improved. Incomplete treatment may lead to relapse or resistance.

Ongoing and Long-Term Treatment for Staph Hypersensitivity

Some dogs develop staph hypersensitivity, a form of allergy to Staphylococcus bacteria that can cause recurrent, stubborn infections. For these cases, veterinarians may recommend desensitization therapy:

  • Desensitization (Allergy Shots): Dogs receive gradually increasing doses of staphylococcal bacterin (killed bacteria) via injection.
  • Administration Schedule: Injections typically start daily, then shift to every few days, then to weeks. The protocol often continues for 1–2 years or longer.
  • Home Care: Owners are generally taught to administer the subcutaneous injections at home after veterinary guidance.
  • Success Rate: Up to 77% of dogs respond favorably, experiencing significant improvement and fewer relapses.

This approach aims to retrain the immune system to tolerate the bacteria, reducing or eliminating hypersensitivity reactions.

Preventing Staph Infections in Dogs

  • Promptly Treat Skin Wounds: Clean and monitor any cuts or abrasions to prevent infection.
  • Manage Allergies: Work with your vet to diagnose and control food or environmental allergies that lead to scratching or biting.
  • Bathe and Groom Regularly: Frequent bathing with prescribed products can prevent skin buildup and manage infection risk, especially in breeds with wrinkles or skin folds.
  • Maintain Parasite Control: Effective flea and tick prevention reduces chances of skin trauma.
  • Optimize Overall Health: Provide optimal nutrition, regular exercise, and veterinary visits to maintain a robust immune system.
  • Keep Living Areas Clean: Regularly wash your dog’s bedding, toys, and collars to reduce environmental contamination.
  • Practice Good Hygiene: Wash hands after touching infected dogs or cleaning wounds; limit contact between affected and healthy pets.

Are Staph Infections Contagious?

Certain staph bacteria can be zoonotic, but the most common dog staph pathogen (Staph pseudointermedius) only very rarely infects humans. Canine staph infections can, however, be contagious among dogs—direct dog-to-dog contact, sharing bedding, bowls, or grooming tools facilitate spread. Special caution must be used with dogs that are immunocompromised, as they may be more at risk.

Prognosis for Dogs with Staph Infections

  • With Timely Treatment: Most mild or moderate staph infections resolve with prompt veterinary care and adherence to the recommended treatment protocol.
  • With Underlying Causes: Success depends on addressing allergies, parasites, or immune diseases that predispose the dog to infection.
  • Recurrent or Chronic Cases: May require ongoing or specialized care, including desensitization therapy and frequent check-ins with your vet.

Left untreated, staph infections can spread, become chronic, or cause serious systemic illness.

Frequently Asked Questions (FAQs)

Q: What should I do if I suspect my dog has a staph infection?

A: Schedule a veterinary appointment as soon as possible. Early intervention can prevent the infection from spreading or worsening.

Q: Can staph infections in dogs be prevented?

A: While not always preventable, you can reduce risk by keeping your dog’s skin healthy, addressing allergies, practicing good hygiene, and providing routine veterinary care.

Q: Are staph infections transmissible to humans?

A: The most common dog staph infection (Staph pseudointermedius) rarely infects people. However, good hand hygiene and care in handling infected animals are recommended.

Q: Will my dog need long-term medication?

A: For uncomplicated infections, a single course of treatment is usually sufficient. If the problem recurs due to allergies or immune problems, ongoing management or allergy shots may be needed.

Q: What happens if a staph infection in a dog is left untreated?

A: Untreated infections can progress to deeper tissues, spread throughout the body, and in rare cases cause life-threatening complications like sepsis.

Key Takeaways

  • Staph infections are common in dogs and primarily affect the skin, but can also involve the ears, eyes, or whole body in severe cases.
  • Prompt veterinary evaluation and treatment are essential to prevent complications.
  • Treatment involves a combination of topical therapies and systemic antibiotics based on the infection severity.
  • Ongoing care and addressing underlying causes such as allergies are crucial for long-term management.
  • Hygiene, wound care, and environmental management are top strategies for preventing recurrence.

When to Follow Up With Your Veterinarian

Follow up as directed if your dog is not improving, if you notice new or worsening symptoms, or if you have questions about ongoing care. Dogs with immune compromise, chronic allergies, or previous severe infections may benefit from regular check-ups to detect problems early and adjust their care plan as needed.

References & Further Resources

  • American Kennel Club: Staph Infections in Dogs
  • VCA Animal Hospitals: Staphylococcal Dermatitis and Hypersensitivity in Dogs
  • Whole Dog Journal: Dog Staph Infection Treatment
  • Zoetis Petcare: Recognizing the Signs of Staph Infections in Dogs
Anjali is an Associate Editor at StyleCraze with 7 years of experience specializing in hairstyles, hair care, and skin care. She has authored over 300 articles and offers expert advice on hair styling techniques, effective skin care routines, and tips for maintaining healthy hair and skin.

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