Chest allergies are allergic reactions that trigger symptoms and discomfort in the lungs or the chest area. In some cases, allergic reactions may cause concerning conditions such as allergic bronchitis. When the lungs are exposed to triggers such as pollution, tobacco smoke, or dust, the bronchial tubes that carry the air into the lungs become inflamed.
When you have bronchitis, your airways will usually produce too much mucus making it difficult to breathe properly. The most common symptom of bronchitis is coughing, chest tightness, wheezing, fatigue, and coughing up white or clear mucus.