Treatment of Chronic Wounds With Cold Plasma -Plasma Care® vs. Placebo

Inclusion Criteria: * Age between 18 and 95 years at the time of consent * Presence of chronic wounds of any origin and wound phase (Includes locally infected wounds) * Wound size up to 20 x 10 cm (If multiple wounds are present, one wound is designated as the study wound) Exclusion Criteria: * Pregnant and breastfeeding women * Patients on ongoing systemic antibiotic therapy or who received antibiotics within 1 week prior to study start * Patients who participated in another study within one month prior to this study * Patients with acute wounds * Wounds with visible tendons and bones * Wounds with more than 30% dry necrosis * Allergy or intolerance to cold plasma * Patients with wounds covered by primary or secondary dressings