Cat Allergies: Causes, Symptoms, Treatments and Reducing Exposure

Cat allergies are allergic reactions to proteins found in a cat’s skin cells, urine, and saliva. These proteins can trigger an immune response in some individuals, causing allergic symptoms. Here’s an overview of cat allergies, including their causes, symptoms, treatments, and ways to reduce exposure:


Cat allergies are primarily caused by proteins in a cat’s skin cells, urine, and saliva. These proteins are called allergens, and the most common cat allergen is a protein called Fel d 1.

When a cat grooms itself, it deposits saliva and allergens on its fur. As the cat sheds fur, these allergens become airborne, and they can settle on surfaces throughout the home. When individuals come into contact with these allergens, they may experience an allergic reaction.


Symptoms of cat allergies can vary in severity and may include:

  1. Sneezing and Runny Nose: Allergens can irritate the nasal passages, leading to sneezing and a runny or stuffy nose.
  2. Watery, Itchy Eyes: Allergic reactions can cause itching and redness in the eyes, along with excessive tearing.
  3. Coughing and Wheezing: Inhaling allergens can trigger coughing and wheezing, especially in individuals with asthma.
  4. Skin Rash: Some people may develop hives or a rash on the skin after coming into contact with cat allergens.
  5. Asthma: For individuals with asthma, cat allergens can worsen respiratory symptoms and trigger asthma attacks.


  1. Allergy Medications: Over-the-counter or prescription antihistamines, decongestants, and nasal corticosteroids can help relieve allergy symptoms. Consult a healthcare provider for appropriate recommendations.
  2. Immunotherapy: Allergy shots (allergen immunotherapy) can be considered for long-term relief by gradually desensitizing the immune system to cat allergens.
  3. Avoidance: Minimizing exposure to cat allergens is often the most effective way to manage cat allergies. This may involve creating cat-free zones in the home, regular cleaning, and using air purifiers.

Reducing Exposure:

  1. Designate Cat-Free Zones: Create areas in your home where your cat is not allowed, such as bedrooms or the area where you sleep.
  2. Frequent Cleaning: Regularly clean your home to reduce allergen exposure:
    • Use a HEPA filter vacuum cleaner.
    • Wash your cat’s bedding and toys frequently.
    • Dust and wipe down surfaces with a damp cloth.
    • Wash your hands and change clothes after handling your cat.
  3. Air Purifiers: Consider using a HEPA air purifier in your home to filter out allergens from the air.
  4. Bathe and Groom Your Cat: Regular grooming and bathing of your cat can help reduce allergen levels. Consult with a veterinarian on the best way to do this without causing stress to your cat.
  5. Medications: Consult with a healthcare provider for advice on allergy medications that can help manage symptoms.
  6. Consult an Allergist: If your cat allergies are severe or persistent, consider seeing an allergist for comprehensive evaluation and guidance on allergy management.

It’s important to note that some individuals may choose to rehome their cat if their allergies are severe and do not respond to other management strategies. However, this is a difficult decision and should be made with careful consideration of the cat’s welfare.