Coping With a Ferret Allergy

It is possible to be allergic to any furred pet, including ferrets. Ferrets are mammals, and they are closely related to minks. The domestic ferret, Mustela putorius furo, is among the furred pets that some people keep in their homes in the United States.

There have been several published reports describing ferret allergies in people who owned ferrets. Although it is fairly rare to own ferrets—the prevalence of allergies may be similar to other pet allergies, although this has not been studied.

Allergic symptoms would likely include symptoms of allergic rhinitis, allergic conjunctivitis, and asthma. Some people have reported skin itching and rashes, such as urticaria, where the ferret touched their skin.​

Diagnosis

There is a commercially available specific IgE ImmunoCAP test for ferret allergy.

In rare cases, an allergist may create a homemade extract for skin testing using any available suspected ferret allergens. This type of testing has not been validated and should be used with caution.

Causes

While ferrets are pets in some American households, there is little known about allergic reactions to these animals. The few studies performed on ferrets show that the proteins causing the allergies are found in the hair, urine, feces, and bedding material. Urine from male ferrets may contain the most potent allergen.

There are numerous proteins that can cause ferret allergy. Albumin, a blood protein, appears to be an important one. Albumin, while mainly found in the blood, may also be found in urine, feces, saliva, and hair/fur.

Who Is At-Risk

Anyone who has a history of hayfever or asthma may be at risk for developing an allergy from exposure to ferrets. It appears that people with cat allergies, particularly those allergic to cat albumin, may also be allergic to ferrets.

Treatment

For people with ferret allergy, avoidance of ferrets is the mainstay of therapy. Allergy medications are likely to help control symptoms, but in many instances, symptoms may persist if the person continues to keep the ferret indoors.

Ferret owners may not want to part with their pets, despite the symptoms they endure. Short of getting rid of the pet, it may be possible to reduce allergy symptoms by following various avoidance measures. It is likely that similar avoidance measures to those used for managing a cat allergy would be useful for people with ferret allergy.

There are no specific allergy shots given for treating ferret allergies, but allergy shots using cat albumin may be helpful in some circumstances, due to the cross-reactivity.