Difficulty breathing through the nose

Difficulty breathing through the nose is a common symptom of many conditions, such as allergies, sinusitis, and the common cold. It can manifest as congestion, sneezing, a runny nose, and a feeling of pressure or tightness in the nose and face. It can also cause a whistling sound when breathing. Difficulty breathing through the nose may worsen over time and can lead to difficulty sleeping, snoring, and fatigue. Treatment depends on the underlying cause and may include medications, nasal sprays, and surgery.