Wound dressing

Wound dressings have been used to clean, cover, and protect the wound from the external environment. A wound dressing must provide a moist environment, remove the excess of exudate, avoid maceration, protect the wound from infection and maintain an adequate exchange of gases. Some dressings also act as drug delivery systems and can be classified as traditional and modern dressings. They are also available as thin films and gels, and hence can be classified as hydrocolloid dressings, alginate dressings, and nonalginate dressings