Cough without sputum may be caused by recurrence of tuberculosis, pharyngitis and allergy.
1. Tuberculosis: Once cured, tuberculosis usually does not recur, but some of them will recur if the treatment is not complete and the body resistance drops. It is recommended to go to the hospital for CT or sputum examination to confirm the diagnosis.
2. Pharyngitis: It may be caused by bacterial infection or viral infection, which will lead to congestion and edema in the throat, and the irritation is stronger, which will easily lead to dry cough. Because the inflammation secretion is very little, the amount of sputum is usually not very large, and there will be dry cough without sputum.
3. Allergy: Some patients are prone to allergic reactions, and sometimes cough symptoms occur due to bronchial irritation. This is usually characterized by a cough without sputum.
Patients with symptoms of cough without sputum should go to the hospital in time for relevant examinations to clarify the cause of the correct treatment. Avoid eating greasy and irritating food during treatment, keep the indoor environment to maintain air circulation, avoid contact with irritating air.