Allergic asthma is asthma due to breathing in an allergen like pet dander or pollen. Symptoms can include shortness of breath, coughing, wheezing and stuffy nose. You may notice that your allergy symptoms get worse during certain seasons due to increased pollen from trees, grasses, and weeds. However, allergic asthma symptoms can occur year-round. Symptoms can be triggered by different things including exercise, high levels of air pollution, cold air, or contact with something you're allergic to, such as pollen, dust, mould or animals. Learn about allergic asthma, a condition triggered by allergens. WebMD explains about allergic asthma, the signs, symptoms, and treatment to help prevent asthma attacks. There are studies that suggest an increased risk from asthma symptoms, allergic reactions, and worse lung function for people with asthma who are having hormone therapy as part of their gender reassignment. Find out what can trigger asthma and how to relieve your symptoms and breathe easier. Common asthma triggers include allergies (like pets or pollen), smoke, cold weather, exercise, strong smells and stress. Asthma attacks can be fatal if not treated. Allergic asthma is a respiratory condition characterized by inflammation and narrowing of the airways, triggered by specific allergens. It is the most common type of asthma. Because allergy and asthma symptoms can change over time, you may need to adjust your treatment. Learn the signs that your asthma may be flaring up — and know what to do when it does. Find out about allergies, including typical symptoms, common allergies, when to get emergency medical help and allergy testing and treatments.