How do you clean a dog s skin infection
Skin Infections in Dogs
What Are Skin Infections in Dogs?
Skin infections are conditions that are caused by infectious organisms such as bacteria, fungi, or parasites. All areas of skin can be affected, including inside the ears and nose, as well as the hair and nails.
The severity of the disease depends on the type of infection and can vary from very mild to painful and itchy. Some organisms that cause skin infections are transmissible (or contagious), which means the infection can be passed to another mammal through direct contact or the environment. There are also infections that are caused by organisms that normally live on the skin and are not considered contagious.
Types of Skin Infections in Dogs
Bacterial
Fungal
Parasitic
Viral
Symptoms of Skin Infections in Dogs
Redness
Bumps or raised areas of the skin
Itchiness (you may see your dog scratching, licking, and/or chewing the skin)
Scales or flakes
Crusts or scabs
Hair loss (alopecia)
Oozing or discharge (blood, pus, clear)
Skin color changes (darker or lighter)
Causes of Skin Infections in Dogs
There are many causes of skin infections in dogs. Some infections are primary infectionsan infection directly caused by an infectious organism. Other infections are secondary infections and occur because of an underlying disease process that triggers an infection.
Primary Infection
Scabies is an example of a primary parasitic skin infection. Dogs acquire scabies by direct contact with an infected animal. The scabies mite then causes the clinical signs associated with the disease. Ringworm is an example of a primary fungal infection and is acquired due to contact with infected individuals or an infected environment, including soil.
Secondary Infection
A common example of a secondary skin infection is one due to skin allergies. The allergies cause inflammation of the skin, which then provides an environment favorable to organism growth. Bacteria or fungi that normally live on the skin are then able to multiply, leading to a bacterial or fungal skin infection.
How Veterinarians Diagnose Skin Infections in Dogs
There are several basic skin tests that are useful in diagnosing a majority of skin infections. The most common ones are:
Skin scrapes: A dull scalpel blade is used to scrape the top layer of the skin; effective for finding skin parasites like demodex.
Skin cytology: A sample is collected by pressing a microscope slide directly to the skin lesion or via a needle and syringe and then looked at under the microscope for bacteria, fungi, or abnormal skin cells.
Tape preps: Clear tape is used to collect a sample of hair or skin to find bacteria, fungi, or parasites when viewed under the microscope.
Cotton swabs: A cotton swab is used to collect a sample, most often from inside the ear, to diagnose bacterial, fungal, or parasitic infections.
Cultures: A sample of skin, hair, or discharge is collected onto a growth plate to look for bacterial or fungal growth over time. This test can also be used to learn which antimicrobial medication is best to treat the infection.
Treatment of Skin Infections in Dogs
The treatment of a skin infection depends on the type of infection, the location of the infection, and the condition of the dog. Bacterial skin infections are treated with oral (by mouth) antibiotics, and/or topical products such as medicated shampoos, conditioners, sprays, and ointments. Common products include:
Fungal infections are treated similarly, with antifungal medications, and parasites are treated with antiparasitic medications.
To help the skin heal and to prevent future infections, other treatments are used to support healthy skin. For example, when treating an ear infection, special ear cleaners are used in addition to the antimicrobial medication. Omega-3 fatty acid supplementation is another treatment used to help resolve and prevent infections. Prevention is often the best medicine and regular bathing and grooming can be helpful for not only treating skin infections but also preventing them from occurring in the first place.
For secondary skin infections, it is important to treat the primary cause of the secondary infection. Skin allergies, for example, frequently require medications to reduce inflammation and allergic reactions. Treating a skin infection without treating the allergy will likely lead to another infection. Food allergies require special diets to reduce skin inflammation. If a food allergy is suspected, your vet will work with you to determine an appropriate food trial,to slowly remove certain ingredients and introduce possible allergies to determine the culprit.
Recovery and Management of Skin Infections in Dogs
The time it takes to treat a skin infection depends on the type of infection, the ability to treat primary causes of the infection, and the severity of disease. Sometimes the most difficult part of the treatment is sticking with treatments for as long as needed.
Some skin infections can be difficult to treat because of antimicrobial resistance. Antimicrobial resistance occurs over time, when microbes develop defenses against our medications, making those medications ineffective. In those cases, treatment can take longer and may require further testing.
Infections can resurface, especially if the primary cause of the infection has not been treated or resolved. Dogs with chronic conditions such as allergies or other diseases are more likely to have repeat infections.
Managing skin infections successfully can be complicated, time consuming, and expensive. Following your veterinarians recommendations closely and being patient during the treatment period is important for resolving the infection and preventing recurrence in your pup.
Featured Image: iStock.com/Sergeeva
WRITTEN BY
Dr. Rania GollaknerVeterinarian
Rania Gollakner received her Doctor of Veterinary Medicine degree in 2010 and a Master of Public Health in 2017. She practiced companion...
Yeast Infections in Dogs
What Are Yeast Infections in Dogs?
Does your dog frantically itch their skin? Have you noticed a bad smell or greasy fur when you pet them?
If so, they may have a yeast infection.
Yeast are fungal organisms that normally live on a dogs skin without causing problems. However, when a dogs immune system weakens or an underlying health condition, such as hypothyroidism, is present, yeast can overgrow and cause an infection.
The yeast that commonly causes skin infections in dogs is Malassezia, which grows on warm, moist areas of the skin. Yeast infections cause extreme itchiness and changes to the skin, such as thickening and discoloration over time.
Yeast infections in dogs are common among pups of all ages.
While yeast infections in dogs are not considered medical emergencies, they should be treated by a veterinarian immediately to prevent symptoms from worsening. If left untreated, yeast infections can cause extreme discomfort, which can lead to a decreased appetite and lethargy, necessitating prompt veterinary care.
Because yeast infections typically develop secondary to an underlying illness or suppressed immune system, they are not contagious among dogs or to pet parents.
Types of Yeast Infections in Dogs
Yeast infections can affect various areas of the skin, including the ears, skin folds, paws, armpits, vulva, and groin.
EarsYeast infections of the earalso referred to as yeast otitiscause a thick, brown discharge and strong odor in the ear canal. Affected dogs repeatedly scratch their ears to try to relieve the discomfort. They may also shake their heads and develop a head tilt. Ear infections are commonly related to food allergies.
SkinYeast dermatitis refers to a yeast infection anywhere on the skin. Affected dogs have a musty odor, greasy coat, flaky or thickened skin, and hair loss. They tend to lick the affected areas of the body, which leads to brown discoloration of the skin over time.
Dermatitis, which is often due to allergies or a suppressed immune system, can affecta dogs skin folds, armpits, vulva, and groin.
PawsYeast infections that affect the paws are generally related to environmental allergies, such as allergies to grass or pollen. Dogs constantly chew or lick their itchy paws, which leads to brown discoloration between the paw pads. Over time, open sores can develop on the paws.
Symptoms of Yeast Infections in Dogs
Signs of yeast infections in dogs can vary depending on what area of the body is affected.
Symptoms of yeast otitis may include:
Symptoms of yeast dermatitis may include:
Itchy skin
Small, red bumps on the skin
Brown discoloration of the skin
Frequent licking or chewing of the affected area
Greasy hair coat
Thickened skin
Strong odor
Symptoms of a yeast infection affecting the paws may include:
Licking and chewing the paws
Brown discoloration of the skin and fur
Red, moist areas between the paw pads
Causes of Yeast Infections in Dogs
Yeast is opportunistic, which means that although it is naturally present on the skin, it can cause an infection when conditions are favorable.
Yeast infections in dogs can develop if a pup has a weak immune system or an underlying health condition. Underlying environmental or food allergies can predispose dogs to developing yeast infections.
Skin parasites, including fleas and mites, can cause dogs to repeatedly itch their skin, which disrupts the normal skin barrier, making an infection more likely.
Some breedssuch as Pit Bulls, Boxers, and Cocker Spanielsare more frequently affected by yeast infections.
How Veterinarians Diagnose Yeast Infections in Dogs
A vet may use several tests to diagnose a yeast infections in dogs.
First, they will gather a through medical history, including when the symptoms started, if your pet is taking any medications, and if they have previously been diagnosed with any health conditions.
Next, your veterinarian will perform a full physical exam to check your dogs overall health. They may also perform blood work to check for any abnormalities.
Additional tests will depend on what your veterinarian finds during the initial exam, but may include the following:
Tape impressionDuring this test, your vet presses a piece of clear tape to the affected area of skin to collect a sample. Its then stained and examined under a microscope to identify yeast.
CytologyA cotton swab is used to collect a sample from the affected area, and it is then rubbed gently onto a microscope slide. The sample is then stained and examined under a microscope to look for yeast.
CultureA sterile cotton swab is used to collect a sample from the affected area. It is then sent to a lab to identify the type of organism present.
Skin biopsyFor chronic infections or those that are unresponsive to treatment, a small sample of skin can be taken and sent to a lab for a more accurate diagnosis.
Treatment of Yeast Infections in Dogs
Treatment for yeast infections in dogs will depend on the location and severity of the infection. Yeast dermatitis is often treated with antifungal medications and prescription shampoos.
If the infection affects only one area, a topical medication may be all that is needed. For more widespread infections, oral medications and frequent bathing can help resolve the issue.
Yeast otitis is typically treated with topical antifungal medications and steroids to reduce inflammation. Your veterinarian may recommend that you use a medicated ear wash prior to instilling ear medications.
Paw yeast infections may benefit from medicated antifungal wipes and oral medications, including antifungals and steroids.
Recovery and Management of Yeast Infections in Dogs
Because yeast infections in dogs often develop secondary to another health condition, they will not resolve without veterinary treatment.
Determining the underlying cause of the yeast infection and treating it accordingly improves treatment success. For example, if your dog has an underlying food allergy, an accurate diagnosis and treatment can help their skin improve.
It can take a few weeks to a few months for a yeast infection to fully resolve, depending on the severity. Most dogs start to feel relief from their symptoms in a week or two, but it can take several additional weeks for a pet parent to notice significant improvement to their skin and coat.
Prevention of Yeast Infections in Dogs
Ensuring your dog receives regular preventive care and vaccinations keeps them healthy and less likely to develop infections.
Additionally, health conditions that can lead to yeast infections in dogs can be caught and managed early during routine wellness visits.
Yeast Infections in Dogs FAQs
What food causes yeast infections in dogs?
Most of the food ingredients that cause allergies in dogs are proteins. Chicken is the most common food allergen related to yeast infections.
What happens if dog yeast infections go untreated?
If a dogs yeast infection is left untreated, it will progressively worsen and lead to extreme discomfort. Over time, the discomfort can cause the dog to become very sick.
What should I feed my dog when they have a yeast infection?
Unless the yeast infection is due to an underlying food allergy, its generally fine to continue your dogs usual diet. However, it is best to follow your veterinarians recommendations when deciding what to feed your dog.
Featured Image:SerhiiBobyk/iStock / Getty Images Plus via Getty Images
WRITTEN BY
Brittany Kleszynski, DVMVeterinarian
Dr. Brittany Kleszynski is a veterinarian and freelance medical writer who specializes in creating meaningful content that engages readers...
