Diabetes belongs to the Chinese medicine “thirst” category, the effective dose of Chinese herbs in water is limited, generally can not play a therapeutic role, therefore, the ground bone skin and raw dihuang water can not lower blood sugar. Bone marrow skin is a flavor of the Chinese medicine to clear the deficiency heat, with cool blood in addition to steam (with the method of clearing heat to cool the blood to eliminate the heat from the bone to the outside of the penetration), clear the lungs and reduce the effect of fire. It is often used in treating Yin deficiency and tidal fever (fever in bursts), night sweating with bone vapor (abnormal sweating after going to sleep and stopping after waking up), coughing with lung heat, hemoptysis, epistaxis, and internal heat and thirst (internal heat accompanied by symptoms such as excessive eating, drinking and urination). Adverse effects or contraindications are not known. Radix Rehmanniae Praeparata is a medicine for clearing heat and cooling blood (relieving blood heat by clearing heat), with the effects of clearing heat and cooling blood, nourishing yin and generating body fluid. It is used in treating heat illness and injury of yin, irritation and thirst of tongue with reddish-red color, spots caused by warm-heat toxin (warm-heat toxin invading the body resulting in spots and plaques on the skin), vomiting of blood, epistaxis, and swelling and pain in the throat. Adverse reactions or contraindications are not clear. Therefore, dijianpi and raw dihuang can treat “thirst” caused by yin deficiency and fire exuberance (deficiency of yin and essence in the body, resulting in hyperactive fire), but the effective dosage of the infusion is limited, and it is generally not therapeutic. It is recommended that diabetic patients seek medical advice in a timely manner, under the guidance of a doctor to clarify the treatment plan for sugar reduction, do not unauthorized use of traditional Chinese medicine in water to avoid delays in the condition.