Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can You Build Up an Immunity to Cat Allergies? Vet-Reviewed Tips & Facts

Share

woman sneezing while holding a cat

Cat allergies are frustrating, especially when the sufferer is a cat lover. Cat allergies can cause skin rashes, nasal congestion, and asthma discomfort.

A common wife’s tale is that exposing yourself to cats can help you build immunity to cat allergens. But there’s no scientific evidence that exposing yourself to a cat in your home will make your allergies disappear; quite the opposite. However, there are medical treatments and tips you can apply to reduce your cat allergies. Understanding how allergies work and what treatments are available can help hopeful cat parents best treat their allergies in a way that allows them to live with their furry companions.

While immunotherapy shots increase your immune system’s tolerance to an allergen and allow you to tolerate being around cats, simply living with a cat is not an acceptable form of immunotherapy!

divider 3 paws

Common Symptoms of a Cat Allergy

Do you think you may have a cat allergy? Check out the following list of the most common signs of cat allergies and see if it checks out. If you have a lot of signs on this list when you’ve recently met a cat, you might want to contact your doctor and have an allergy panel done!

  • Coughing and wheezing
  • Hives or a rash on the chest and face
  • Red, itchy eyes
  • Redness of the skin where a cat has scratched, bitten, or licked you
  • Runny, itchy, stuffy nose
  • Sneezing
a kid sneezing
Image By: Luisella Planeta Leoni, Pixabay

How Do Allergies Work?

Allergies are a result of an overactive immune system in humans. Our immune systems are intended to identify harmful pathogens like bacteria, viruses, and parasites and eliminate them before they can take residence in the body. When the body identifies a threat, the immune system kicks in and attacks and kills the threat.

Allergies happen when the immune system identifies a harmless substance as a threat and attacks it as if it were a virus. Allergies are common and range in severity from causing some mild discomfort to being deadly.

When your body detects an allergen, the immune system will produce histamines. Histamines help your body remove the allergen from the system by having you sneeze it out, itch it off, or any of the other symptoms you may experience when having an allergic reaction.

People can have all sorts of allergies to everything from fragrances to cats and even water! Cats produce many allergens that can cause an allergic reaction, but cats’ most common allergens are found in dander, saliva, and urine.

The most severe kind of allergic reaction is called anaphylaxis. Anaphylaxis is a potentially life-threatening condition that can put a patient in a condition known as anaphylactic shock. When in anaphylactic shock, the blood pressure will crash, airways narrow, and the person may go into cardiac arrest. Fortunately, most cat allergies are not this severe but can still make life miserable.

Allergic signs may immediately develop when an allergen is introduced to the system. In other cases, it may take hours for the allergic signs to surface.

Cat allergies are among the most common allergies in humans. Additionally, 20% -30 % of people with allergic asthma will experience a flare-up when introduced to cat dander.

divider 3 paws

How Are Allergies Treated?

There are many different methods of treating cat allergies that range from non-invasive to somewhat invasive. There is currently no cure for cat allergies; those who have cat allergies will have to deal with them for their whole lives. The following methods can reduce allergy symptoms both before and during an attack.

Woman sneezing beside a cat
Image By: Motortion Films, Shutterstock

Antihistamines

Antihistamines reduce the impact that histamines have on the body and reduce the allergy symptoms for the sufferer.


Decongestants

If you have trouble with your nose getting stuffy after you breathe near a cat, you might want to look into a decongestant to clear that up for you.


Nasal Steroid Sprays

Nasal steroid sprays are a standard allergy treatment available over-the-counter in many places under Flonase, Rhinocort, and Nasacort Allergy 24HR. But we recommend that you don’t self-medicate without discussing it with your doctor first.

These medications dampen down the effects of an allergic reaction but don’t treat the underlying allergy. The immune system will continue to overreact when the drug is out of the system.

Suppose you’re looking to reduce your long-term allergy medication usage. In that case, you’ll want to either start avoiding situations where cats might be or look into Allergen-Specific Immunotherapy if avoidance isn’t possible or is unacceptable to you.

divider 3 paws

What Is Allergen-Specific Immunotherapy?

Allergen-specific immunotherapy (AIT) is when purified concentrates of the allergen in question are introduced to the person’s system through an injection or under-the-tongue tablet. They desensitize the immune system to the allergen and allow the person to tolerate gradually larger introductions of the allergen.

AIT has an efficacy of 85%–90% when reducing a person’s allergen sensitivity. However, this process can take 3–6 months before any allergen relief is notable and 12–14 months before complete relief from symptoms is achieved.

AIT is also a considerable time commitment. For the 12–14 months that therapy is necessary, you will have to get your allergen shot every week religiously, or you may not see relief from your symptoms. Additionally, AIT may have waning efficacy over time as some patients have to return to clinics for booster shots because their allergy symptoms return.

Can Cat Allergies Be Prevented?

There is no way to prevent someone from getting cat allergies, but being around cats as a child does reduce the likelihood of cat allergies. Allergies can develop at any time in life, so just because you weren’t allergic as a kid doesn’t mean you can’t be an adult.

New advances are being made all the time, and scientists are looking to try to reduce and eliminate Fel d 1 antigens from cats. Feeding your cat special foods, such as Purina Liveclear, can also help.

Are Hypoallergenic Cats Real?

There’s no such thing as a truly hypoallergenic cat. While some cat breeds produce less dander than others, no cat is without dander. They all shed dead skin cells because they’re all covered in skin!

divider 3 paws

Final Thoughts

Unfortunately, you can’t beat your immune system over the head with an allergen until it becomes desensitized to it. Even pharmacological intervention has limited efficacy when dealing with allergies. But hope is not lost for our allergic cat lovers out there! New developments in treating cat allergies are being made every day, and with the advances in immunotherapy already, they’re looking very promising!


Featured Image Credit: Pormezz, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

The Cat Biting Mistakes Most Owners Make (And What Works Instead)

Cat bites sent more than 400,000 people to emergency rooms in the US each year.1 Not scratches. Bites. And the reason they’re so...

Do Cats Cause Schizophrenia? Scientists Find a Link – Here’s What It Means

Being a fierce advocate (and occasional recipient of) mental health support and awareness, the term ‘crazy’ is not one I like to fling...

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

More related

Cat Laryngitis: Our Vet Explains Causes, Signs, & Treatments

Has your cat started to have an odd meow? Maybe it’s deeper or really squeaky, but there is no doubt about it: something...

Do Cats Think Dogs Are Cats? Vet-Reviewed Science & Info

Even though cats and dogs have a negative association, many get along very well. If you have dogs and cats, you probably already...

Can Cats Eat Tangerines? Vet-Reviewed Diet Facts & FAQ

Tangerines, often known as mandarins, are citrus fruits that people eat as quick, healthy snacks. They are tasty, sweet, and filled with antioxidants....

Why Does My Cat Sleep on Me? 6 Vet-Reviewed Reasons & Solutions

Cats have strange and quirky behaviors that help keep their owners both entertained and confused. One common yet endearing habit of felines is...

Keep reading

Is Feline Heart Disease (Saddle Thrombus) Hereditary? Our Vet Explains

Heart disease in cats is worryingly common in cats, with more than 15% affected worldwide. That’s an alarming 8.8 million cats in the US alone. The vast majority of feline cardiac disease is due to a condition called hypertrophic cardiomyopathy,...

vet doctor checking up the cat

Can Cats Eat Bread? Vet-Approved Facts & FAQ

Bread is a tasty treat that can be served in a variety of ways. During the pandemic, many people began experimenting with making their own bread at home due to shortages at grocery stores and bakeries, as well as to...

Can Cats Eat Bread

How Much Are Kitten Shots at PetSmart? Typical Cost & FAQ

Cats require vaccinations throughout their lives, but the most important ones are given when they’re kittens. This is a critical time in which kittens need to build up immunity, but those frequent shots can add up financially. Fortunately, you can...

vet giving kitten vaccine

10 Best Brushes for a Himalayan Cat in 2026 – Reviews & Top Picks

Himalayan cats are known for their endearing nature and stunning appearance. Caring for a Himalayan is a rewarding experience, but it requires significant grooming duties. The cat’s long, thick coat becomes easily tangled if it’s not brushed every day, and...

Cat with long hair being brushed with hepper brush

Savannah Cat Health Problems: 8 Vet-Reviewed Issues

The Savannah Cat is a large cat breed that’s known for its intelligence, playfulness, and athleticism. The Savannah Cat hybrid is the result of breeding a domestic cat with a Serval wild cat. These first offspring are then bred again...

Savannah Cat Health Problems

Why Do Cats Rub Their Faces on You? 3 Vet-Reviewed Reasons

A cat rubbing their face on you is one of the highest compliments you can receive from your furball, and it’s seriously adorable to boot. This behavior is called “bunting,” and it’s a common way cats greet their human companions,...

Gray cat licking owners face

When Are a Cat’s Teenage Years? Vet-Reviewed Facts & Useful Tips

Just like humans, cats go through a stage that tends to correlate with “teenage” behavior. Some of it is cute and funny, and some of it is irritating and frustrating. Fortunately, the cat teenage years are not all bad, and...

Bengal kitten playing

Can Cats Drink Bottled Water? Vet-Reviewed Types & Recommendations

Healthy cats need to drink around four ounces of water per five pounds of body weight daily. This amount will vary though, depending on their diet, activity levels and any underlying medical conditions. Unfortunately, some kitties are very picky and...

Can Cats Drink Bottled Water

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.