Allergies During Pregnancy: Why They Occur & How to Manage Safely

1. Hormonal Changes: The immune system is altered during pregnancy. While it becomes more tolerant of the growing fetus, it can also become hyper-reactive to certain allergens. The elevated progesterone and estrogen levels can also cause nasal congestion, making the body more vulnerable to irritants.
2. Increased Blood Flow: Pregnant women experience increased blood volume and circulation, which may lead to heightened sensitivity to certain allergens, especially in the respiratory system. This can result in nasal congestion or sinus problems.
3. Weakened Immune System: Pregnancy naturally suppresses the immune system to prevent it from attacking the fetus. However, this suppression can make a woman more susceptible to infections and allergic reactions. The body might overreact to substances it previously tolerated, leading to allergic symptoms.

• Nasal Congestion (Pregnancy Rhinitis): Pregnancy rhinitis, or nasal congestion, affects many women and can be triggered by changes in hormone levels. This leads to stuffy or runny noses and sneezing.
• Skin Reactions: Some women experience skin rashes, hives, or itching due to allergic reactions. Skin sensitivity may increase during pregnancy, making women more prone to irritants.
• Asthma and Breathing Issues: For women with asthma, pregnancy can sometimes worsen symptoms, leading to shortness of breath, wheezing, and tightness in the chest.
• Eye Irritation: Itchy, red, or watery eyes can be caused by seasonal allergies, or they might be due to increased sensitivity during pregnancy.

• Immune System Changes: The shift in the immune system during pregnancy might trigger allergic reactions in women who have never had them before.
• Environmental Changes: Pregnancy often leads to changes in lifestyle, such as spending more time indoors or changing diet and hygiene habits, which could increase exposure to allergens.
• Genetic Factors: A woman may have a genetic predisposition to allergies, and pregnancy could activate this predisposition, leading to symptoms for the first time.

1. Avoid Triggers: The best way to manage allergies is to avoid known allergens. For example, avoid outdoor activities when pollen levels are high, or limit contact with pets if you have pet allergies.
2. Use Safe Medications: Over-the-counter antihistamines, like loratadine (Claritin), are considered safe for pregnant women when used as directed. However, always consult with a healthcare provider before taking any medication during pregnancy.
3. Nasal Saline Rinse: Using a saline nasal spray or rinse can help relieve nasal congestion and clear allergens from the nasal passages without any harmful effects on pregnancy.
4. Humidifiers: Using a humidifier in your bedroom can help ease nasal congestion and keep the airways moist, reducing irritation from allergens.
5. Consult Your Doctor: It’s always a good idea to consult your healthcare provider about any allergic symptoms. They can provide guidance on safe treatments and ensure there are no complications for you or your baby.

• Severe Breathing Problems: If you experience difficulty breathing, wheezing, or tightness in your chest, contact your doctor immediately. This could be a sign of an asthma attack or a more serious allergic reaction.
• Swelling of the Face or Throat: If you notice swelling in the face, lips, or throat, this could indicate an anaphylactic reaction, which requires immediate medical attention.
• Uncontrolled Symptoms: If your allergy symptoms are not improving with over-the-counter treatments or are interfering with your daily life, your doctor can help explore other treatment options.

• Reduced Oxygen Supply: If asthma is not managed properly, it can reduce the amount of oxygen that reaches both the mother and baby, potentially leading to low birth weight or premature delivery.
• Pregnancy Rhinitis: Although it is mostly harmless, persistent rhinitis can affect a woman’s quality of life, leading to discomfort or sleep disturbances.

Allergies during pregnancy are common but often misunderstood by expectant mothers. During this critical time, your body undergoes significant hormonal shifts that can intensify allergic reactions or trigger new sensitivities. At Dr KY Kakudji's antenatal clinics in Randfontein, we help women understand why allergies during pregnancy develop and provide safe, evidence-based management strategies. Whether you're experiencing nasal congestion, skin reactions, or asthma symptoms, our compassionate team ensures both you and your baby receive optimal care throughout your pregnancy journey.

Allergies during pregnancy are common but often misunderstood. During pregnancy, your body undergoes significant hormonal shifts that can trigger or intensify allergic reactions. These allergies during pregnancy occur because elevated progesterone and estrogen levels alter your immune system's response to allergens. Whether you're experiencing new allergies during pregnancy or worsening symptoms, understanding the causes helps you manage them safely. At Lenmed Randfontein, our OBGYN specialists provide personalised guidance on treating allergies during pregnancy with approaches that protect both you and your growing baby.

Allergies during pregnancy are common but often misunderstood by expectant mothers. Understanding why allergies during pregnancy occur is essential for safe management. During pregnancy, hormonal shifts—particularly increased progesterone and estrogen—can alter immune function and increase sensitivity to allergens. Additionally, increased blood volume and circulation during pregnancy may heighten respiratory sensitivity. If you're experiencing new or worsening allergies during pregnancy, professional guidance from your OBGYN at Lenmed Randfontein ensures both you and your baby receive safe, evidence-based care tailored to your unique needs.