Randomized Controlled Trial on the Efficacy and Safety of Xiang Lei Ointment in Diabetic-related Ulcer Management

Inclusion Criteria: * a confirmed diagnosis of type 1 or type 2 diabetes mellitus that meets the standard World Health Organization definition, with blood glucose controlled prior to enrolment and a glycated haemoglobin HbA1c level of less than 10%; * the type of wound is an ulcer; * the wound etiology is diabetic, mainly abnormalities in blood glucose, resulting in poor or prolonged healing and requiring standard wound therapy; * the staging of the wound is in the granulation phase; * voluntary participation in the study and signing of an informed consent form. Exclusion Criteria: * acute heart attack, heart failure, hepatitis, shock, expiratory failure and other serious diseases that have not been corrected; * uncontrolled blood glucose, fasting blood glucose \> 15 mmol/L and glycated haemoglobin \> 12%; * active bleeding in the wound, which does not allow the implementation of the conventional basic treatment plan; * serum albumin \< 20 g/L; haemoglobin \< 60 g/L; platelets \< 50 x 109/L; * a state of disseminated infection that is being or will be treated with antibiotics * patients with advanced malignant tumours; * active autoimmune disease; * previous allergy to topical human granulocyte macrophage stimulating factor gel (Jinfuning); * inability of the patient to co-operate or mental disorder; * in the judgement of the investigator, the subject has a clearly irremovable cause of wound healing, is unsuitable for the study or is unable to comply with the requirements of the study.