Sleeping with a strong cough and waking up not coughing much, with dry air, vagus nerve excitation, bronchitis, allergic asthma and so on.
1. Dry air: sleeping with doors and windows closed, air circulation, low humidity, stimulating the bronchial mucosa causing irritating cough.
2. Vagus nerve excitation: vagus nerve excitation at night, increased tension, resulting in bronchial smooth muscle spasm, while the sound gate is tightly closed, triggering cough.
3. Bronchitis: the bronchial mucosa secretes phlegm, and when bronchial inflammation occurs, it will aggravate the irritation of phlegm on the bronchial mucosa, and produce coughing symptoms in order to discharge phlegm.
4. Allergic asthma: bedding for a long time not clean will also become an allergen, coupled with the vagus nerve excitation at night, allergic asthma often attack at night, aggravating cough symptoms.
Found that sleeping cough strong waking up not cough, should promptly consult the hospital to complete pulmonary function tests, bronchoscopy and other related examinations, to clarify the cause of the disease, in accordance with medical advice treatment.