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How Severe Is My Pet Allergy?
Six questions to gauge how badly your pet is affecting you and whether you have practical options short of rehoming.
This calculator estimates based on self-reported information and should not replace a professional allergy evaluation. Results are educational, not a diagnosis.
Pet allergy is one of the most emotionally loaded conditions we treat. Patients arrive convinced the only option is to rehome a beloved animal, and they brace for a recommendation they cannot bring themselves to follow. In most cases, that recommendation is not necessary. Modern allergy treatment, especially immunotherapy, has changed what is possible for cat and dog allergic patients.
What you actually react to
It is not the fur. It is the dander (skin flakes), saliva, and urine proteins. Cat allergen (Fel d 1) is unusually sticky and small. It travels on clothing, lingers in dust for months, and is found in homes that have never had a cat. Dog allergens (Can f 1, Can f 5, others) vary by breed and individual dog, which is why some patients react to one dog but not another. There is no truly hypoallergenic breed, despite what marketers say. Some dogs simply produce less allergen than others.
What environmental control can and cannot do
A bedroom with no pet access, a HEPA air purifier running 24/7, weekly pet bathing, and hard floors instead of carpet can drop indoor pet allergen levels by 70 to 80 percent. That is enough for many mild and moderate cases. For severe cases, environmental control alone usually is not enough. The allergen rebuilds faster than you can clean it.
Why immunotherapy is the long-term answer
Allergy shots and sublingual drops for cat and dog allergen retrain the immune system over 3 to 5 years. Success rates are high. We have built up that experience over more than 4 decades of treating Central Texas families who refuse to give up their pets. Immunotherapy is also the only treatment that addresses the root cause rather than masking symptoms with medication.
When the pet has to go
There is one situation where rehoming is the right answer: severe uncontrolled asthma triggered by the pet, especially in children. Hospitalizations for asthma in pet-allergic kids are not worth the emotional cost of keeping the animal. Outside of that, we usually find a path forward.
