Lying down and getting up is often considered to be related to chronic rhinitis or colds, nasal polyps and other causes. 1. Chronic rhinitis: it is a chronic inflammatory disease of nasal mucosa caused by acute rhinitis and other factors, mainly characterized by nasal congestion, increased secretion and recurrence. When lying down, the blood distribution in the head increases, and the blood vessels of the nasal mucosa increase, which can cause the turbinate swelling and aggravation of nasal congestion; when sitting up or standing up, the blood in the nose decreases, the nasal congestion decreases, and the nose is ventilated. 2. Cold: there are symptoms of upper respiratory tract infection, such as nasal congestion, cough, runny nose and other symptoms, may appear in the position change when there is nasal congestion in different manifestations, such as lying down nasal congestion aggravated, stand up to reduce. 3. Nasal polyps: part of the nasal sinus polyp hyperplasia will lead to the narrowing of the nasal passages, the swelling in the standing hanging, and lying down with the swelling of the nasal mucosa will be piled up together, resulting in nasal congestion aggravated. When the nose is out of breath, you can go to the hospital specialist, clear causes of nasal congestion, follow the doctor’s instructions on the cause of the symptomatic treatment.