Platycodonopsis infused water has a limited number of active ingredients and generally does not have the therapeutic effect of the drug, and cannot treat prolonged coughing. If you want to treat the disease, you can recognize the evidence, follow the doctor’s instructions to use the decoction of Platycodon grandiflorum internal treatment. Platycodonopsis belongs to a kind of traditional Chinese medicine, in the clinic, the main choice is the dried root of Platycodonopsis, family Platycodonaceae. Because the drug can play a role in promoting the lung, expectorant, so it can be used to treat cough and phlegm, sputum, chest tightness, prolonged cough and other conditions. In addition, Platycodon grandiflorum can also benefit the pharynx and expel pus, and can also treat sore throat, cough of lung carbuncle, chest pain, and fishy sputum. Platycodon grandiflorus is ascending and dispersing, and should not be used in cases of qi upturning, vomiting, choking, coughing, dizziness, and coughing up blood due to yin deficiency (deficiency of yin and essence in the body, and hyperactivity of deficiency fire). If the patient is not feeling well, it is recommended to consult a doctor in time to clarify the cause of the disease, and it is not advisable to use the medicine by oneself in order to avoid delaying the condition.