The first thing you need to do is to identify the cause of the dry cough. Common causes include postnasal drip syndrome, cough variant asthma, eosinophilic bronchitis, and gastroesophageal reflux cough, etc. Appropriate medication will be given according to the cause of the cough. 1. Postnasal drip syndrome: nasal disease secretion backflow to the throat and other parts of the stimulation caused by rhinitis, sinusitis and other underlying diseases. Therapeutic drugs include: antihistamines (such as paracetamol), decongestants (such as pseudoephedrine), inhaled glucocorticoids (budesonide nasal spray), mucolytics (such as carboxymethylstilbestrol) and so on. 2. Cough variant asthma: it is a special type of asthma, mainly characterized by irritating dry cough, which is heavier at night and in the early morning. Therapeutic drugs include glucocorticosteroids (such as hydrocortisone), bronchodilators (such as salbutamol) and so on. 3. Eosinophilic bronchitis: mainly chronic irritating cough, glucocorticoid therapy (e.g. prednisone) is effective. 4. Gastro-esophageal reflux cough: cough caused by the reflux of gastric acid and its gastric contents into the esophagus, which can be accompanied by reflux symptoms such as acid reflux and belching. Treatment drugs include acid-suppressing drugs (e.g., omeprazole), gastric stimulants (e.g., domperidone), and so on. Dry cough recurring for two to three months may also have other causes, such as bronchiectasis, lung cancer, chronic bronchitis, etc. It is recommended to consult a doctor in time to identify the cause and give targeted treatment. The above medications should be used under the guidance of a doctor.
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