Farmactive Hydro Sterile Dressings Indications: slight or moderately exuding wounds. Farmactive Hydro is a sterile dressing in the form of plaques based on hydrocolloid substances covered with a semi-waterproof film in breathable polyurethane. It is used for the treatment of slightly or moderately exuding skin lesions such as bedsores, venous ulcers, surgical wounds and post-operative wounds. Hydrocolloid dressing maintains an optimal moist environment to speed wound healing or injury. Absorb excess exudate by evaporating it through high permeability. It is impermeable to liquids and bacteria, it is also elastic and conformable to provide maximum comfort for the patient.