There is no research to suggest that there are any contraindications to taking Platycodon grandiflorum, but excessive dosage of Platycodon grandiflorum is likely to lead to nausea and vomiting, so it is not advisable to take it more often or for a longer period of time. However, the medicinal efficacy of the drug in water is limited, and the therapeutic effect of a single drug is not good, it is recommended that a professional physician to identify the prescription after the group of drugs, and other medicines with a reasonable combination to improve the efficacy of the drug. Platycodon grandiflorum is bitter, pungent, neutral in nature, and belongs to the lung meridian. It has the efficacy of promoting the lungs, expelling phlegm, inducing phlegm, discharging pus, and treating cough and phlegm, sore throat, hoarseness, carbuncle with vomiting pus, sores and ulcers, urinary retention (not being able to urinate or not being able to urinate out of the urine), and constipation, etc. It can also be used in the treatment of other diseases. After the appearance of discomfort should be timely medical treatment, under the guidance of the physician’s diagnosis and selection of medication, not self-medication, so as not to delay the condition.