Betafoam Diabetes Mellitus Foot Study

Inclusion Criteria: * Adult of age ≥19 years at the time of informed consent * Foot ulcers related to diabetes mellitus: * Present * Type I or II diabetes mellitus with HbA1c \<10%, or serum creatinine ≤ 200 μmol/l * Wagner grade I-II (Partial- or full- thickness and not involving bone, tendon, or capsule (probing to tendon or capsule) * Post -debridement ulcer bed size ≥ 1\*1cm2 * No clinical signs of infection \& necrosis * Site at anywhere below ankle * No vascular abnormalities of the foot by palpation (i.e. the dorsalis pedis should be examined by the physician and characterized as present or absent) Exclusion Criteria: * Pregnant \& lactating females * Known allergy to the dressing product including povidone iodine * Known hyperthyroidism or other acute thyroid diseases * Subject with clinical infection who should be administered antibiotics continuously after enrolment * Subject has any condition(s) that seriously compromises the patient's ability to complete this study. * Subject has participated in interventional study utilizing an investigational drug within the previous 30 days * Subjects with known immune-suppressed state; who undergo chemotherapy or with end-stage renal disease requiring haemodialysis or had kidney transplant surgery previously and with immunosuppressant specifically * Subjects requiring skin grafting per physician's discretion * Vulnerable subjects as defined by Good Clinical Practice guidelines.