No cough when lying down for a day, but coughing occurs upon standing up.

Coughing when standing up but not coughing while lying down may be caused by conditions such as chronic pharyngitis, chronic bronchitis, or chronic obstructive pulmonary disease. Etiological treatment is recommended.

1. Chronic Pharyngitis

This symptom may result from chronic pharyngitis, in which long-term inflammatory factors irritate the pharyngeal mucosa, causing congestion and increased mucus secretion. Under medical guidance, lozenges such as Yinhuang lozenges, menthol lozenges, or iodine lozenges can be used to relieve symptoms like coughing and a sensation of a foreign body in the throat.

2. Chronic Bronchitis

The condition might be due to pre-existing chronic bronchitis, where inflammation damages and irritates the respiratory mucosa. Antibiotics prescribed by a doctor—such as levofloxacin capsules, amoxicillin capsules, or roxithromycin dispersible tablets—can be used to combat infection and promote resolution of inflammation.

3. Chronic Obstructive Pulmonary Disease (COPD)

Long-term smoking or prolonged inhalation of harmful particles may lead to COPD, resulting in persistent airflow limitation in the lungs. For mild symptoms, bronchodilators prescribed by a physician—such as terbutaline sulfate tablets, salbutamol sulfate tablets, or salmeterol fluticasone powder for inhalation—can help maintain airway patency. In severe cases, surgical interventions such as lung volume reduction surgery or lung transplantation may be considered to expand lung capacity and improve pulmonary function.