Pet allergy is an allergic reaction to proteins found in an animal's skin cells, saliva or urine. Signs of pet allergy include those common to hay fever, such as sneezing and runny nose. Some people may also experience signs of asthma, such as wheezing and difficulty breathing.
Most often, pet allergy is triggered by exposure to the dead flakes of skin (dander) a pet sheds. Any animal with fur can be a source of pet allergy, but pet allergies are most commonly associated with cats and dogs.
If you have a pet allergy, the best strategy is to avoid or reduce exposure to the animal as much as possible. Medications or other treatments may be necessary to relieve symptoms and manage asthma.
Source: http://www.mayoclinic.com
Pet allergy signs and symptoms caused by inflammation of nasal passages include:
If your pet allergy contributes to asthma, you may also experience:
Some people with pet allergy may also experience skin symptoms, a pattern known as allergic dermatitis. This type of dermatitis is an immune system reaction that causes skin inflammation. Direct contact with an allergy-causing pet may trigger allergic dermatitis, causing signs and symptoms, such as:
Some signs and symptoms of pet allergy, such as a runny nose or sneezing, are similar to those of the common cold. Sometimes it's difficult to know whether you have a cold or an allergy. If symptoms persist for more than two weeks, you might have an allergy.
If your signs and symptoms are severe â with nasal passages feeling completely blocked and difficulty sleeping or wheezing â call your doctor. Seek emergency care if wheezing or shortness of breath rapidly worsens or if you are short of breath with minimal activity.
Source: http://www.mayoclinic.com
Allergies occur when your immune system reacts to a foreign substance such as pollen, mold or pet dander.
Your immune system produces proteins known as antibodies. These antibodies protect you from unwanted invaders that could make you sick or cause an infection. When you have allergies, your immune system makes antibodies that identify your particular allergen as something harmful, even though it isn't.
When you inhale the allergen or come into contact with it, your immune system responds and produces an inflammatory response in your nasal passages or lungs. Prolonged or regular exposure to the allergen can cause the ongoing (chronic) airway inflammation associated with asthma.
Allergens from cats and dogs are found in skin cells the animals shed (dander), as well as in their saliva, urine and sweat and on their fur. Dander is a particular problem because it is very small and can remain airborne for long periods of time with the slightest bit of air circulation. It also collects easily in upholstered furniture and sticks to your clothes.
Pet saliva can stick to carpets, bedding, furniture and clothing. Dried saliva can become airborne.
So-called hypoallergenic cats and dogs may shed less fur than shedding types, but no breed is truly hypoallergenic.
Rodent pets include mice, gerbils, hamsters and guinea pigs. Allergens from rodents are usually present in hair, dander, saliva and urine. Dust from litter or sawdust in the bottom of cages may contribute to airborne allergens from rodents.
Rabbit allergens are present in dander, hair and saliva.
Pet allergy is rarely caused by animals that don't have fur, such as fish and reptiles.
Source: http://www.mayoclinic.com
Your doctor may suspect a pet allergy based on symptoms, an examination of your nose, and your answers to his or her questions. He or she may use a lighted instrument to look at the condition of the lining of your nose. If you have a pet allergy, the lining of the nasal passage may be swollen or appear pale or bluish.
Your doctor may suggest an allergy skin test to determine exactly what you're allergic to. You may be referred to an allergy specialist (allergist) for this test.
In this test, tiny amounts of purified allergen extracts â including extracts with animal proteins â are pricked into your skin's surface. This is usually carried out on the forearm, but it may be done on the upper back.
Your doctor or nurse observes your skin for signs of allergic reactions after 15 minutes. If you're allergic to cats, for example, you'll develop a red, itchy bump where the cat extract was pricked into your skin. The most common side effects of these skin tests are itching and redness. These side effects usually go away within 30 minutes.
In some cases, a skin test can't be performed because of the presence of a skin condition or because of interactions with certain medications. As an alternative, your doctor may order a blood test that screens your blood for specific allergy-causing antibodies to various common allergens, including various animals. This test may also indicate how sensitive you are to an allergen.
Source: http://www.mayoclinic.com
Ongoing (chronic) inflammation of tissues in the nasal passages caused by pet allergy can obstruct the hollow cavities connected to your nasal passages (sinuses). These obstructions may make you more likely to develop bacterial infections of the sinuses, such as sinusitis.
People with asthma and pet allergy often have difficulty managing asthma symptoms. They may be at risk of asthma attacks that require immediate medical treatment or emergency care.
Source: http://www.mayoclinic.com
If you don't have a pet but are considering adopting or buying one, make sure you don't have pet allergies before making the commitment.
Source: http://www.mayoclinic.com
Avoiding exposure to pets is the best remedy for pet allergy. For many people that doesn't sound like a good option, because family members are often very attached to their pets. Talk to your doctor about whether reducing exposure to your pet, rather than finding a new home for your pet, may be sufficient for managing your pet allergy.
If you do find a new home for your pet, your allergy symptoms won't disappear immediately. Even after a thorough cleaning, your house may have significant levels of pet allergens for several weeks or months. The following steps can help lower pet allergen levels in a newly pet-free home:
If you keep your pet, you can help minimize the allergens in your home with these tips:
Source: http://www.mayoclinic.com
Pet allergies are common. However, you're more likely to develop a pet allergy if allergies or asthma runs in your family.
Being exposed to pets at an early age may help you avoid pet allergies. Some studies have found that children who live with a dog in the first year of life may have better resistance to upper respiratory infections during childhood than kids who don't have a dog at that age.
Source: http://www.mayoclinic.com
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