Coughing when you run even though your cold has cleared up may be caused by allergic cough, bronchitis, etc. It can be treated by medication and oxygen therapy. 1. Allergic cough: because the body itself belongs to the allergic body, in the process of running, the lung capacity will increase with the breathing, inhaling dust and cold air, stimulating the respiratory tract caused by airway spasms, the symptoms of coughing when running, can be treated with drugs such as levocetirizine, loratadine, and so on. 2. Bronchitis: the patient himself has bronchitis, when running breathing faster, a large amount of air into the lungs and trachea, resulting in lesions are constantly stimulated by the air, the symptoms of coughing while running, can be treated with drugs such as salbutamol, terbutaline, etc., the effect of the drug treatment is not good, you can relieve the symptoms of oxygen therapy, such as nasal vestibular catheterization of the oxygen to alleviate the symptoms. In addition to running cough may also be due to exercise asthma and other diseases, patients should go to the hospital as soon as possible to clarify the cause of the disease, after diagnosis under the guidance of the doctor for standardized treatment.