The fastest way to stop coughing when you have a cold cough is to take phlegm-relieving drugs, such as Qingxuan Cough Granules or Pulmonary Cough Compound, compound fresh bamboo leachate, aminoglutethimide oral solution or strong loquat. If these drugs do not work well, it means that there is inflammation of the respiratory tract. You can take some Chinese anti-inflammatory drugs, such as Pu Di Lan Anti-inflammatory Oral Liquid and Blue Scutellaria Oral Liquid, at the beginning of the cough. If it is a late stage cough, you also need to take antibiotics for treatment. The more effective antibiotics for treating upper respiratory tract infections are penicillin antibiotics, which can be taken as amoxicillin clavulanic acid potassium, provided there is no penicillin allergy. If the effect of taking antibiotics is still not obvious, you need to go to the hospital for a chest X-ray to rule out pneumonia. If pneumonia is present, hospitalization is required for treatment.