Pet allergies affect women the same during pregnancy as they do any other time, but some medications may not be safe to use during pregnancy due to the potential risk of harm to the unborn baby. These medications, called antihistamines, work to block the immune system's reaction to the pet dander (skin flakes), feces, saliva and urine, explains the American College of Asthma, Allergies and Immunology. BabyCenter.com explains the immune system triggers several responses to fight off allergens in pregnant women who are allergic to pets. These signs of allergy can vary depending on the severity of the sensitivity to the dander.
Nasal Signs
When dander enters the nasal passages the immune system triggers several reactions to fight off the allergen. This includes sneezing to eject the allergen from the airways, the production of mucus (runny nose) and nasal stuffiness. The stuffiness is due to congestion that occurs when the nasal passages become inflamed and swollen, according to the University of Maryland Medical Center (UMMC). During pregnancy a woman's sense of smell is often heightened but the allergic reaction can diminish this sense.
Eye Signs
Pet dander can be introduced into the eyes when they are airborne or when the allergens are on the hands and the eyes are rubbed. Eye signs of pet allergy when this occurs include redness, itching, swelling of the eyelids and watering. The UMMC also points out that dark circles can form under the eyes. The darkened skin tissues are often the result of sinus swelling, sinus pressure and a lack of sleep. Sleeping is already difficult during pregnancy but allergies can exacerbate this issue. The UMMC suggests allergens can cause general fatigue.
Throat Signs
Due to the extra production of mucus, post-nasal drip may develop. This is a condition where the mucus runs from the nasal sinuses down the back of the throat leading to a sore throat, coughing and even bad breath. A dry cough is common and is a result of itchiness felt due to the allergen. BabyCenter.com suggests allergies can cause wheezing or trouble breathing in some pregnant women. These symptoms can appear like asthma or they may even trigger an asthma attack in asthmatic women.
