Allergy to cat saliva – Causes, symptoms and effective treatments. Learn to control this allergic reaction and live with it.

Cat saliva allergy - Causes, symptoms and effective treatments. Learn to control this allergic reaction and live with it.

For people who suffer from cat allergies, it’s not just the hair that can trigger irritating symptoms. Cat saliva allergy, also known as Fel d 1 allergy, is a common allergic reaction that occurs when a person is exposed to proteins found in cat saliva. This allergy can cause a series of symptoms, from mild discomfort to serious respiratory problems, which affect the quality of life of cat lovers.

Cat saliva allergy primarily occurs when allergenic proteins in a cat’s saliva are transferred to its fur during grooming. When a cat licks its fur, these proteins become airborne, causing allergic reactions in susceptible people. Although cat hair can harbor allergens, it is important to note that the main source of these allergens is found in the cat’s saliva.

Important information:

  • Pet allergy symptoms can range from sneezing, coughing and itching to more serious breathing problems, such as asthma attacks.
  • People allergic to cat saliva may experience symptoms when they are in direct contact with a cat, or even in environments where cats have been present.
  • Allergens in cat saliva can remain in the environment for a long period of time, even after the cat has been removed.

When cats groom themselves, they deposit allergenic proteins in their fur through saliva. These proteins, known as allergens, can end up in the environment in the form of microscopic particles, where they can trigger allergic reactions in susceptible individuals. It is important to keep in mind that not all cats produce the same amount of allergens, and some individuals may have different degrees of sensitivity to these allergenic proteins.

Allergies to cat saliva are caused by the body’s immune system overreacting to the presence of specific proteins found in cat saliva

  • Potential symptoms of cat saliva allergies include:
    1. Sneezing and stuffy nose
    2. Itchy and watery eyes
    3. Skin rash or hives
    4. Asthma or difficulty breathing

People who suspect that they can have cat saliva allergy can take several measures to control their symptoms and minimize exposure to allergenic proteins. Regular cleaning of the house, including the aspiration of surfaces and the use of air purifiers, can help eliminate the allergens from the cat’s saliva from the environment. In addition, creating “cat” areas in the house, such as bedrooms, can provide a space in which allergic find relief to their symptoms.

How Cat Saliva Triggers Allergic Reactions

Cats are known for their meticulous toilet habits, since they spend hours a day licking their hair and legs. This grooming behavior transfers allergenic proteins of your saliva to your fur, which can be transported by air and deposit on the surfaces of the environment. When these allergens come into contact with an allergic person to cats, they can stimulate the immune system to release a chemical called histamine, which causes allergic symptoms.

  1. Allergenic proteins: cat saliva contains several proteins that act as allergens in sensitive people. These proteins, such as Fel D 1 and Fel D 4, are present in high concentrations in saliva and are deposited in cat’s hair during grooming.
  2. Air transmission: When cats move and groom, allergenic proteins of their saliva pass into the air. They can adhere to dust particles or float freely in the air, so they are easily inhaled or come into contact with the skin of a person.
  3. Immune response: When an allergic person to cat saliva is exposed to these allergenic proteins, their immune system recognizes them as strange invaders. This recognition triggers the release of histamine and other chemical substances that cause typical allergic symptoms.

Note: It is important to keep in mind that it is not the cat’s hair itself that causes allergic reactions, but the allergenic proteins that saliva transport and that spread through cat girlfriend behaviors. For this reason, even cats with shorter hair can cause allergies.

Fel D 1 The most common allergenic protein found in cat saliva.
Fel D 4 Another allergenic protein present in the cat’s saliva, less frequent than the fel d 1.
Histamine Chemical substance released by the immune system in response to cat allergens, which causes symptoms such as sneezing, itching and congestion.

Common Symptoms of Cat Saliva Allergy

1. Respiratory symptoms: One of the most common signs of cat saliva allergy are respiratory symptoms. When an allergic person comes into contact with cat saliva, he can experience sneezing, cough, sibilant breathing and drip or nasal congestion. In the most serious cases, the person can also have difficulty breathing, chest oppression and lack of breath. These respiratory symptoms may appear shortly after exposure to allergen and can last several hours or even days.

  • Sneezing
  • Cough
  • Sibilations
  • Nasal drip or congestion
Respiratory symptoms Gravity
Short of breath Moderate to severe
Thoracic oppression Moderate to severe

Note: It is important to keep in mind that respiratory symptoms can be a sign of a more serious allergic reaction, such as anaphylaxis. If someone experiences difficulty breathing or oppression in their throat after coming into contact with cat saliva, it is essential that you look for immediate medical attention.

2. Cutaneous reactions: Another common symptom of cat saliva allergy is skin reactions. These reactions occur when allergenic proteins of the cat’s saliva come into contact with the skin. The skin can red, chop and inflame. People allergic to cat saliva can develop urticaria or rashes after being lined or scratched by a cat. In some cases, the skin can become dry and squamous, which increases discomfort.

  1. Redness and skin itching
  2. Inflammation
  3. Urticaria or rash
  4. Dry and squamous skin

The symptoms of cat saliva allergy can significantly affect a person’s quality of life, especially if it is exposed to cats regularly. Recognizing these common symptoms is crucial to control allergy and seek adequate medical treatment.

Diagnosis and Testing for Cat Saliva Allergy

The first step to diagnose an allergy to cat saliva is a thorough medical evaluation by an allergologist. During this evaluation, the allergologist will carefully review the patient’s medical history, including any allergic reaction prior to cats or other allergens. The allergologist will also investigate the specific symptoms experienced by the individual when exposed to cat saliva or in the presence of cats.

After the medical evaluation, the allergologist can recommend a series of tests to confirm the allergy to cat saliva. One of the most commonly used tests is the cutaneous puncture test, in which small amounts of cat allergens are placed on the patient’s skin and then click gently to allow allergens to penetrate the skin. If the patient is allergic, it is likely to develop a small elevated bulge in the place of the puncture in 15 minutes.

Important: The cutaneous puncture test is considered a reliable and relatively rapid method to diagnose allergies to the saliva of cats. However, it is essential to take into account that a positive skin test does not always indicate a clinical allergy. Therefore, additional tests may be necessary to confirm the diagnosis.

If the results of the cutaneous test are not conclusive or additional confirmation is required, the allergologist may recommend a blood analysis. This blood test, known as the specific IgE test, measures the levels of immunoglobulin and (IgE) antibodies in the blood that occur in response to the cats of the cat’s saliva. High levels of IgE antibodies are indicative of an allergic reaction to cat saliva.

In some cases, when the diagnosis remains uncertain even after cutaneous puncture and blood tests, the allergologist can suggest an oral food provocation. This implies a carefully supervised exposure to cat saliva in controlled amounts to observe any adverse reaction. The oral provocation test is usually considered the reference method to diagnose allergies to cat saliva, since it allows rea l-time control to the organism to the allergen.

Important: It is crucial to undergo adequate diagnostic procedures under the supervision of a medical professional. Sel f-diagnosis or trust only in homemade test kits can lead to inaccurate results and potential health risks.

In summary, the diagnosis and tests of the allergies to the saliva of the cats imply an exhaustive medical evaluation followed by skin puncture tests, blood tests and, in some cases, oral tests with food. These procedures, carried out by allergologists, help determine the presence and severity of the allergy, allowing people to look for adequate treatment options and avoid possible allergic reactions.

Managing Cat Saliva Allergies: Prevention and Treatment


  • Keep cats out of the bedroom: creating a area free of allergens by prohibiting cats from entering the bedrooms can significantly reduce exposure to allergens present in saliva or cat dandruff.
  • Frequent cleaning: Regularly aspiring carpets, upholstery and curtains can eliminate allergens that may have accumulated. It is recommended to use a vacuum cleaner with high efficacy air particles (HEPA) to better eliminate allergens.
  • Wash bedding frequently: frequently wash bedding, including pillow and blankets, in hot water can help eliminate allergens that may have been deposited in them.

Tip: Cat owners should also consider investing in hypoallergenic bed materials that are resistant to allergen accumulation.


  1. Antihistamines without recipe: antihistamines of sales without recipe can help relieve mild allergy symptoms. However, it is essential to consult with a health or allergologist before starting to take any medication.
  2. Antiallergic injections: Immunotherapy, commonly known as antiallergic vaccines, can be a lon g-term viable treatment option for cat allergies. These injections gradually expose people to small amounts of allergens, which allows the body to create a time tolerance.

Caution: Antiallergic vaccines should only be administered under the supervision of a qualified healthcare professional and must adapt to each person based on their specific allergies and medical history.

Living with a cat saliva allergy does not have to give up the idea of having a cat as a pet. Applying preventive measures and exploring adequate treatment options, people allergic to cat saliva can continue enjoying the company of these captivating creatures.

Living with a Cat Allergy: Tips and Advice

If you are allergic to cats, it is essential that you minimize your exposure to cat allergens. One way to get it is to create a cat free zone at home, such as keeping your bedroom out of the reach of your feline partner. This can help reduce their exposure to allergens, especially during the night, when symptoms can get worse. In addition, aspiring and cleaning dust regularly can help eliminate hair and cat dandruff.

  • Avoid direct contact with cat saliva: cat saliva contains proteins that usually trigger allergies. Avoid that your cat brings you or touch objects that may have been in contact with your saliva, such as your food bowl or your toys.
  • Wash your hands frequently: after any interaction with cats, be sure to wash your hands well with soap and water. This will help eliminate any allergen that may have transferred to your skin.
  • Consider using air purifiers and antiallergic covers: Investing in high efficiency particle air purifiers (HEPA) can help filter allergens of air cats. In addition, the use of antiallergic covers for mattress, pillows and upholstered furniture can create a barrier between you and allergens.
  1. Look for Medical Council: If the symptoms of cat allergy persist or significantly affect their quality of life, it is recommended to consult a medical professional. They can provide antiallergic medication or adequate immunotherapy options based on their specific needs.
  2. Consider hypoallergenic cat races: it is known that some cat races produce less allergens or have less prone hair to trigger allergic reactions. Look for races of hypoallergenic cats and consider the possibility of adopting one if life does not imagine without a feline partner.
  3. Keep the cat clean: regularly bathe your cat can help reduce the number of allergens present in your fur. Although cats are known for their water aversion, you can consult your veterinarian to suggest how to make the bathroom experience more tolerable for your furry friend.

Although living allergy to cats may require some adjustments in the lifestyle, it is possible to enjoy the company of a cat without experiencing serious allergic reactions. If you follow these tips and seek the necessary medical advice, you can create a comfortable life environment for both you and your feline partner.

Author of the article
Dr.Greenblatt M.
Dr.Greenblatt M.
Medical oncologist at the Robert Larner College of Medicine, MD, at the University of Vermont

Cannabis and Hemp Testing Laboratory
Add a comment