SALACIA: SALvesAn vs Conventional Management of dIAbetic Foot Wounds

Inclusion Criteria: * Adult diabetic patients (18-89 years) * Chronic wounds (present for \>=3 weeks since commencing Podiatry care) * Non-healing (wounds that, in the view of the patient's Podiatrist, are not responding to standard treatment) * Wounds that are \>=5mm when measured in any direction Exclusion Criteria: * Patients lacking capacity to provide informed consent * Patients with underlying terminal disease * Patients with severe comorbidities, e.g. morbidly obese; uncontrolled diabetes (HbA1c \> 97 mmol/mol); gangrene; chronic leg oedema/venous disease; end-stage renal disease; untreatable ischaemic heart disease; HIV; etc. * Women who are pregnant or breastfeeding will be excluded from this trial. * Women of child-bearing potential who are not using an acceptable form of contraception will be excluded from this trial.