Pet Allergies: What To Do If You’re Allergic to Your Cat or Dog
Sniffles don’t have to separate you and your bestie.
What Is a Pet Allergy?
Allergies happen when your immune system overreacts to something typically harmless. With pet allergies, many people mistakenly blame fur—but it’s actually the proteins found on your pet’s skin (dander), in their saliva, and in their urine that trigger reactions.
For most people, these proteins pose no issue. But if you’re allergic, your immune system misidentifies them as threats and mounts a defense.
“Your body releases histamines and other chemicals to expel the perceived invader,” explains Hannah Kopelman, DO, a dermatologist at DermOnDemand.
These chemicals cause all the familiar—and often frustrating—symptoms: sneezing, itching, congestion, and more.
Symptoms of a Pet Allergy
Symptoms vary widely from person to person. Some experience mild sniffles; others may develop asthma attacks or skin rashes. While cat and dog allergy symptoms often overlap, certain patterns are more common:
Cat Allergy Symptoms
- Sneezing, runny, or stuffy nose
- Itchy, watery eyes
- Asthma symptoms (wheezing, shortness of breath)
- Eczema flares or hives after direct contact
- Itchy throat or persistent coughing
Dog Allergy Symptoms
- Nasal congestion or frequent sneezing
- Itchy, red, or watery eyes
- Skin rashes where your dog licked or touched you
- Mild wheezing
- Unexplained fatigue
How quickly symptoms appear—and how long they last—also varies. For some, reactions begin within minutes and fade soon after leaving the pet’s presence. For others, symptoms may take hours to surface and linger for days.
Can You Keep Your Dog or Cat If You’re Allergic?
When board-certified allergist Kara Wada, MD—or dermatologist Hannah Kopelman, DO—meets a new patient struggling with pet allergies, their first instinct is never to suggest rehoming. “As a pet lover myself, rehoming is the absolute last resort,” says Dr. Wada.
In over 15 years of clinical practice, Dr. Wada has recommended rehoming only once—and even then, only after exhausting every other option. For nearly all patients, she works collaboratively to build a personalized, realistic plan.
“It takes dedication,” she adds, “but it’s almost always possible to stay happily bonded with your pet while keeping symptoms well managed.”
What To Do If You Suspect You’re Allergic
If you suspect your pet is triggering allergy symptoms, start with practical, evidence-based changes at home. Always consult a healthcare provider too—especially if reactions are severe or worsening.
Make Small Changes at Home
- Create pet-free zones: Designate your bedroom as an allergen-free sanctuary. This gives your immune system an uninterrupted eight-hour break each night.
- Invest in air purification: High-efficiency particulate air (HEPA) filters capture airborne dander and allergens. Advanced systems using photoelectrochemical oxidation (PECO) technology go a step further—trapping and neutralizing them.
- Keep things clean: Wash your hands after handling your pet. Use a vacuum with a true HEPA filter. Wash pet bedding and toys weekly in hot water—and dry on high heat. Change clothes after close cuddle sessions.
- Minimize carpeting: Rugs and carpets trap dander. Hard-surface flooring (like hardwood or tile) is ideal. If your pet is older or less steady on their feet, add nonslip mats or pet-safe traction aids instead of risking slips.
- Keep your pet well-groomed: Regular brushing—at least several times a week—helps remove loose hair and dander before it spreads. Weekly baths (using a gentle, veterinarian-approved shampoo) and professional grooming appointments can significantly reduce airborne allergens, says Rachel Cocchiaro, DVM, of Bahama Road Veterinary Hospital.
Try Over-the-Counter Medications
For best results, pair OTC treatments with environmental changes. Your doctor may recommend:
- Oral antihistamines (e.g., cetirizine or loratadine)
- Lubricating or antihistamine eye drops for itchy, dry eyes
- Saline nasal sprays or corticosteroid nasal sprays (available OTC or by prescription)
Always follow label instructions carefully—timing and dosage matter for effectiveness.
Ask Your Doctor for Prescription Support and Testing
If OTC solutions and lifestyle adjustments aren’t enough, talk to your healthcare provider about next steps:
- Prescription-strength nasal corticosteroid sprays
- Prescription antihistamines with longer-lasting effects
- Allergy immunotherapy (allergy shots or sublingual tablets), which gradually desensitizes your immune system over time
How Do Doctors Diagnose a Pet Allergy?
Diagnosis usually begins with a simple, in-office skin prick test. As Dr. Wada explains: “We place a tiny amount of the suspected allergen on your skin and make a small, shallow scratch. If you’re allergic, a small, raised, itchy bump—similar to a mosquito bite—will appear within 15–20 minutes.”
An alternative is an IgE-specific blood test, which measures antibodies linked to allergic responses. Both tests help confirm whether pets are truly the culprit—and guide treatment decisions, especially when symptoms interfere with daily life or major lifestyle changes are being considered.
Are There Hypoallergenic Dogs and Cats?
Dr. Cocchiaro is clear: no cat or dog is truly hypoallergenic. “There’s no such thing as an allergen-free pet,” she says. “All animals produce the proteins that trigger reactions—even hairless breeds.”
That said, some breeds shed less fur and dander, or produce lower levels of key allergens like Fel d 1 (in cats) or Can f 1 (in dogs). These low-shedding or low-allergen-producing animals are often marketed as “hypoallergenic”—but individual responses still vary widely.
Even with a so-called hypoallergenic pet, symptom relief isn’t guaranteed. Consistent environmental management remains essential.
A Promising Option for Cat Owners
For cat lovers who want to keep their feline companion, dietary intervention offers real promise. FurPetVo’s LiveClear Allergen-Reducing Formula is clinically shown to reduce levels of Fel d 1—the primary cat allergen found in saliva—by up to 73% in as little as three weeks. It works by supporting your cat’s natural immune response, not by eliminating the protein entirely.
“It’s a meaningful reduction—not a cure—but for many families, it makes a noticeable difference in comfort and quality of life,” says Dr. Cocchiaro. Always consult your cat’s veterinarian before switching foods.
What Are the Best Dog and Cat Breeds for People With Allergies?
According to Dr. Cocchiaro, these cat breeds tend to shed less and produce fewer airborne allergens: Siberian, Balinese, Russian Blue, Devon Rex, and Cornish Rex. Among dogs, popular lower-allergen options include Poodles (all sizes), Portuguese Water Dogs, Shih Tzus, Bichon Frises, and Schnauzers.
Remember: breed alone doesn’t guarantee compatibility. Spend time with a specific animal before bringing them home—and continue managing your environment diligently, regardless of breed.
