Loquat has certain effects of clearing heat and removing fire, its specific effects are to moisturize the lungs, quench thirst, and lower the qi, and can be used to treat coughing and wheezing with lung heat, thirst, and vomiting. Loquat is the fruit of loquat, family Rosaceae, sweet, sour flavor; cool nature; non-toxic. It enters the spleen, lung and liver meridians. Loquat has the effect of quenching thirst, moistening the lung and lowering the qi, and can be used to treat lung impotence, cough and vomit blood, epistaxis, vomiting, dry thirst and other conditions. Loquat kernel is bitter in taste and flat in nature, and enters the lung and stomach meridians. It has the effects of expelling phlegm and relieving cough, harmonizing the stomach and lowering the rebelliousness (regulating the stomach qi and making the upwardly rebellious qi descend). The adverse reactions and contraindications of loquat are not clear. It should be used with caution in patients with spleen deficiency and diarrhea (diarrhea caused by weak spleen function) and diabetes mellitus. If there is any physical discomfort, it is necessary to consult a doctor in time to standardize the treatment, so as to avoid delaying the condition and causing adverse consequences to the body.