Animal Dander / pet allergy

Cat and dog allergy is common. 

Other allergies to types of animals include those with hair (fur), feathers or even scales, including:

• Rabbits
• Rodents such as guinea pigs, mice and hamsters
• Birds
• Horses
• Reptiles

Pet allergy is caused by the protein in a pet’s saliva, urine or dander (shed skin particles). 

Cats and dogs produce multiple proteins with the potential to cause a pet allergy. It is commonly thought that the hair causes symptoms, however it is the pet’s dander that is mainly responsible. 

This is spread when pets shed their hair or feathers or groom themselves. 

Cat allergen is found on the skin and fur and is due to their sebaceous and salivary glands: when a cat licks itself the allergen is transferred onto the hair. 

Dog allergen is found mainly in the hair, dander and saliva. The main source of allergen for rodents, such as mice, is in their urine.

It is possible to develop an allergy to an animal or pet at any time, even where that animal has previously been a pet, or where a pet does not live in your home. 

Pet allergens can also be found in schools and public places where they have been transferred on clothing and shoes from pet owners. 

Allergic symptoms of a pet allergy can be mild, moderate or severe, depending upon the individual’s sensitivity and level of exposure. 

They can start within minutes of exposure or can be delayed (late phase response) and include:

• Sneezing
• Coughing
• Breathing difficulties
• Wheeze
• Watery, red, itchy eyes
• Skin rash/Hives
• Eczema flare
• Anaphylaxis

• Clinical history 
• Blood test for specific IgE to the suspected animal and/or 
• Skin prick testing

1. Avoid the pet or animal where possible
2. If this is impossible or insufficient then medication to help alleviate the symptoms can be used . Medicines include:

• Non-sedating antihistamines
• Antihistamine nasal sprays
• Eye drops
• Nasal sprays
• Asthma inhalers
• Allergen barrier balm