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Learn More About Skin Allergies In Cats

Learn More About Skin Allergies In Cats

Cats can get itchy, painful skin conditions and are not immune to skin allergies. Our Placentia vets are here to explain some of the causes and treatment options.

Types of Allergies in Cats

If your cat is suffering from an allergy it means that their immune system is overreacting or is hypersensitive to a particular substance. A substance that causes an allergic reaction is called an allergen. Some common allergens in humans include food, pollen, dander, and mold.

An allergic reaction to a substance can lead to 3 general types of symptoms:

  • Skin -  Itching of the skin, either in a specific spot or more generalized all over your cat's body.
  • Respiratory - Coughing, sneezing, and wheezing and other respiratory issues including discharge from the nose or eyes.
  • Gastrointestinal - The third manifestation involves the digestive system and can result in vomiting, flatulence, and/or diarrhea.

These different reactions are caused by different types of allergen; parasites that live in or on the cat's body, allergen that cause a reaction upon contact, allergen that are ingested, and allergens that are inhaled.

In today's blog, we look at different causes of skin allergies in cats, the associated symptoms and how they can be treated.

Causes of Cat Skin Allergies & Their Treatments

When it comes to skin allergies, the allergen causing the condition will either be parasites, food allergies, or environmental allergies.

Contact Allergies

This is not the most common allergy type but it can occur in some cats and result in patches of irritated skin wherever the substance has come in contact with your cat's body. Common contact allergens include flea collars, shampoos, and various materials that make up bedding etc. While it can be challenging to pinpoint the precise cause of your cat's allergy it's worth the effort since removing or simply not using the allergen will clear up your cat's symptoms quickly and easily.

Allergies From Flea Bites

Contrary to popular belief, not all cats will scratch wildly when bitten by a flea. In a lot of cases, the bite from a flea will be nothing more than a minor irritation. This being said, there are some cats who suffer from flea allergies and if they are bitten they will scratch relentlessly or chew their skin, removing large amounts of hair in the process. If your cat is allergic to flea bites you may also notice open sores or scabs on the skin, particularly at the base of the tail. These sores can result in secondary bacterial skin infections. 

The best way to treat this allergy is to keep fleas well away from your pet with preventive medications. If your pet does get fleas, speak to your vet about various flea control products and how to rid your cat of fleas. Corticosteroids (cortisone or steroids) can be prescribed by your vet to help block the allergic reaction and give your cat immediate relief from itchiness. Antibiotics may be required if your cat has a secondary skin infection due to scratching.

Food Allergies in Cats

Food allergies in cats are caused by an immune reaction to an ingredient or an additive in their food. Among the most common food allergies for cats are chicken, turkey, and beef. Some vegetable proteins found in commercially produced cat foods may be problematic for some cats including corn and wheat, and for other cats, food additives and preservatives can lead to an allergic response. Food allergies can lead to itchy skin, digestive disorders, and respiratory distress.

If you or your vet suspect that your cat has food allergies it is recommended that you switch to an elimination or hypoallergenic diet. These diets involve feeding your cat a diet consisting of only novel ingredients such as rabbit or venison and eliminating their regular food completely. To be effective, these diets must be adhered to strictly. This means that you cannot give your cat treats (unless approved as part of the diet), and no sneaking any table scraps. Elimination diets must be adhered to for between 9-12 weeks in order to give your cat's body time to eliminate all traces of the problematic ingredient and start the recovery process.

Inhalant & Atopy Allergies

Inhalant and atopy allergies are those related to substances found in the environment such as ragweed, pollen, mold, dust mites and pollutants such as cigarette smoke. In cats, reactions to these allergens can include severe itching across the body. It is common for cats with these allergies to be allergic to more than one substance so it can take patience to pinpoint the precise cause. While in many cases these allergies are seasonal much like hayfever in people, in other cases, itching may be present year-round.

Treatment for these allergies largely depends on the severity of the allergy and whether it is seasonal. A hypoallergenic diet can be helpful in relieving symptoms and treatments can include:

  • Corticosteroids (prednisone)
  • Essential fatty acids/fish oils
  • Antihistamines
  • Antigen injections/allergy shots
  • Immunosuppressive drug therapy
  • Sprays and shampoos to improve the health of the skin

Ongoing Treatment for Cats with Skin Allergies

It's important to note that many of the treatments for skin allergies in cats take time to take effect and are not appropriate for sudden flare-ups. Your vet will provide you with treatments for acute symptoms and for the long-term management of the condition.

While treatment can help to control and relieve your cat's symptoms, the only surefire way to keep your cat comfortable is to prevent them from coming in contact with the allergen altogether. This means that while your cat may live symptom-free for long periods of time, symptoms will likely recur periodically. Your vet will be able to help you and your cat deal with allergic reactions whenever they appear.

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

If you have a cat with skin allergies that are causing them a lot of discomfort, it's time to contact our Placentia vets to get to the bottom of the issue and find a permanent solution.

Yolinda Animal Hospital, Placentia

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