Allergies can cause air passages to swell, constrict, and produce excess mucus in the lungs. Not only can this result in chest pain, but can also lead to chest congestion. During an allergic reaction, ...

Chest congestion can be a symptom of an acute illness or a chronic underlying health condition. Common causes include flu, asthma, and COPD. Chest congestion is often a symptom of an acute illness.

Medically reviewed by Farah Khan, MD Key Takeaways Asthma can cause chest congestion due to mucus buildup in the lungs.

Chest congestion is a common condition that affects a wide range of people, leading to discomfort, fatigue, and difficulty breathing. While some mucus production is a normal part of the body’s defense ...