There is no such thing as the “most effective” clinical treatment for a dry cough without phlegm after a cold, which is an upper respiratory tract infection. Coughing after a cold suggests the possibility of a lower respiratory tract infection, or the involvement of allergic factors.
Coughing after a cold suggests a lower respiratory tract infection, given that the dry cough without sputum, mostly chlamydia, mycoplasma infection may be. At this time according to the cause of anti-infection treatment, choose macrolide antibiotics, such as erythromycin, erythromycin, clarithromycin, azithromycin and so on. Cough can be relieved with a variety of cough and phlegm medications, such as compound licorice oral solution, acute branch syrup and so on.
If there are allergic factors involved, you can combine anti-allergy treatment, such as loratadine, montelukast and so on.
Dry cough without phlegm after a cold, if the symptoms have not been relieved, should promptly consult the doctor to identify the cause of the active treatment.