The aim of this study is to compare the effect of antioxidant dressing (active product) on chronic wound healing with the use of non-active wound dressing for healing in a moist environment (standard clinical practice) in patients with hard-to-heal wounds

Inclusion Criteria:

• Patients over 18 years of age.
• Patients with leg ulcers (venous, ischemic, traumatic or diabetic foot ulcer).
• Patients with dehisced surgical wounds healing by second intention.
• Patients with pressure ulcers.
• Wound area between 1 and 250 cm2.

Exclusion Criteria:

• Systemic inflammatory disease or oncological disease.
• Wounds with clinical signs of infection.
• Terminal situation (life expectancy less than 6 months).
• Ulcers from other etiologies: tumours, infectious.
• Wounds treated with negative pressure therapy.
• Pregnancy.
• History of sensitivity or allergy to any of the components of the study dressing.

In addition, criteria for withdrawal from the study will be considered:

• Worsening of the wound according to the clinical judgment of the professional (appearance of clinical signs of infection or others).
• Appearance of allergies or hypersensitivity to the dressing.
• Death.
• Hospital admission that interrupts or complicates the continuity of care in the Nursing Consultation.
• Transfer to another Health District where there can be no continuity of care with the active dressing.