What you said is not very clear. It's just a cough, but I still have cold symptoms, cough. If it is only cough, it should be divided into dry cough (cough without phlegm) and cough with phlegm. If you have a dry cough, it is usually a viral infection, or it is early. Phlegm is bacterial infection, and the treatment is based on the principle of antivirus and anti-infection, relieving cough and resolving phlegm, so there is no best medicine as you said, and the medicine for symptomatic treatment is the best.

Then I'll make it easier for you. Antibiotics (whichever you choose, generally acceptable)+antiviral granules (one pack three times a day)+Bisuping tablets (16mg means two tablets three times a day)+compound licorice tablets (3 tablets three times a day)+compound Ganmaoling tablets (4 tablets 1 time a day) are prohibited for pregnant women. It usually takes about a week to recover without getting worse. If it gets worse, go to the hospital.