Loquat leaf is mainly used to treat hot cough, it is not suitable for patients with cold cough. According to the Chinese Pharmacopoeia, loquat leaf is a kind of traditional Chinese medicine, its flavor is cold, belongs to the lung meridian and stomach meridian, has the effect of clearing the lungs to stop coughing and lowering the rebelliousness to stop vomiting, and is mostly used for coughing due to lung heat, shortness of breath, vomiting due to gastric heat, and irritable heat and thirst. Therefore, it is often used to treat cough, chest tightness, asthma and other symptoms caused by lung heat. Loquat leaves are not suitable for cold cough, cold evil caused by cough if the use of loquat leaves, not only not beneficial to the treatment of the disease, but may aggravate the original symptoms. It should be noted that the use of traditional Chinese medicine is based on evidence-based treatment, so it is important to consult a professional Chinese medicine practitioner before using traditional Chinese medicine.