Prescription for cough without phlegm is not scientific and should not be trusted blindly.
There are many reasons for cough without sputum, including pharyngitis, variant asthma, endobronchial mass or pulmonary stasis, etc. In addition, taking angiotensin-converting enzyme inhibitor (ACEI) drugs such as captopril may also cause irritating dry cough and other adverse reactions.
The treatment of cough without sputum should be based on its specific causes, not blindly believe in the prescription, so as not to delay or aggravate the condition.
It is recommended that people with cough without sputum go to a regular hospital in time, to clarify the cause of the disease, under the guidance of the doctor for standardized treatment, so as not to delay the condition.