Pressure ulcers, also known as pressure ulcers or pressure ulcers, are chronic wounds formed in bedridden patients after long-term compression of local tissues seriously affects tissue blood circulation, leading to continuous ischemia and hypoxia of the skin and subcutaneous tissues, causing malnutrition and tissue ulceration and death. They are a common type of wound in clinical rehabilitation treatment and care. Similar to lower limb ulcer wounds, pressure ulcers generally discharge more pus. On severe pressure ulcers, skin decay can form a cavity, and strip shaped alginate dressings can be used to fill heavily decayed cave like wounds. The good hygroscopicity of alginate dressings makes them particularly suitable for the care of pressure ulcers.

Surgery is currently the main method for treating complex anal fistulas, and changing the wound dressing after complex anal fistula surgery is the key to ensuring treatment effectiveness. Due to the unique physiological structure of the anus, there is generally more bleeding and exudation on the wound surface after perianal surgery. The local wound of the anus is open, contaminated by feces, and prone to infection, resulting in delayed healing. Alginate dressing forms fibrous colloid after contacting with wound exudate, expands after absorbing the liquid, forms soft, moist, semi-solid material similar to gel on the wound, insulates the wound from the outside world, forms a closed atmosphere free oxygen environment, accelerates the proliferation of new microvessels, can maintain the moist environment of the wound, improve the regeneration ability of epidermal cells, accelerate the movement of epidermal cells, and promote wound healing. In addition, the exchange of sodium ions/calcium ions with the exudate releases calcium ions, which has the function of accelerating hemostasis.

Lower limb ulcers generally occur in elderly people with limited mobility. Due to poor blood flow, skin tissue lacks necessary nutrients and forms ulcers. This kind of wound has a slow formation process and a great damage to the physiological function of the skin. Due to the poor quality of the elderly, the wound healing process is slow, and the lower limb ulcer wound generally has a high exudate. Because the alginate dressing has a high moisture absorption and forms a gel body after moisture absorption, which has a gel blocking property, it is particularly suitable for the care of lower limb ulcer wounds. It is generally used as a direct contact layer with the wound surface, which can reduce the pain of patients when removing the dressing and the secondary bleeding of the wound. During clinical application, alginate dressings can be fixed onto wounds with bandages.

The main causes of foot ulcer in diabetes are neuropathy, angiopathy and infection. The foot infection of diabetes patients is mostly caused by trauma. Because the high glucose state leads to the decline of body immunity, patients are very vulnerable to infection, so diabetes patients are very likely to lead to foot ulcers after foot injury. Alginate dressings are converted into gel after absorbing wound exudates. They have a high ability to absorb exudates and keep moist for exudative diabetes foot ulcer wounds, promote wound healing, and effectively inhibit bacterial growth. The dressing can maintain the moist environment and gas flow of the wound surface, and create a favorable environment for healthy wound healing. The use of alginate dressing for diabetes foot ulcers can not only alleviate the pain of patients, reduce their economic burden, but also facilitate the manipulation of the nursing process, which can effectively avoid bacterial infection.

Nasal packing is a traditional Chinese medicine measure for treating nosebleeds and preventing postoperative bleeding, adhesion, or restenosis of the nasal cavity and sinuses. Alginate dressings become gel like after encountering sodium salt in blood or wound. They have good biocompatibility and hydrophilicity, and can absorb a large amount of exudate. At the same time, they can promote the shedding of necrotic tissue, clean the wound, accelerate wound healing and epithelial repair. Especially in nasal surgery, they can accelerate the adhesion and aggregation of platelets and red blood cells, promote hemostasis, and reduce the pain of patients when forming colloid on the wound. Therefore, they are suitable for the care of nasal surgery wounds. The clinical use of alginate dressings has shown that there is less bleeding during filling and extraction, which can alleviate nasal pain and alleviate postoperative nasal mucosal edema.

Traditional emergency hemostatic dressings mainly include first aid kits, four headbands, and other cotton dressings (such as cotton, bandages, gauze, etc.), which rely solely on physical pressure to stop bleeding. The hemostatic effect is not good, and often requires the use of hemostatic bands to control wound bleeding. The indications for alginate dressings in various surgical wounds are mainly reflected in three aspects: absorbing wound exudate, promoting hemostasis, and providing a moist healing environment for the wound. At the same time, alginate dressings can also alleviate wound pain and absorb the protease of the wound, accelerating the healing process of the wound. When alginate dressing is applied to cut wounds, pressure ulcers and bleeding wounds in the skin donor area, calcium ions in the fibers and sodium ions in the wound exudate exchange to form gel. After calcium ions are released, a large amount of calcium ions on the wound surface can accelerate the hemostasis of the wound.

Burn care includes the burn wound and burn skin supply area, the latter having a large and flat surface that is easily adhered to the dressing. When using traditional products such as Vaseline gauze, there are drawbacks such as excessive bleeding, patient pain, and susceptibility to wound infection. Due to the high hygroscopicity of alginate dressings and the formation of colloids after moisture absorption, they are particularly suitable for the care of burns and burn skin supply areas, which can reduce the pain of patients and secondary bleeding of wounds when removing dressings. Alginate dressings have good biocompatibility, biodegradability, and can effectively reduce skin irritation. High oxygen permeability can prevent anaerobic bacterial infections. After using alginate dressings, rinsing the wound with physiological saline can remove the dressing from the wound, providing great convenience for patients.

Surgical incision fat liquefaction directly affects the normal healing of the incision and the patient's postoperative recovery, prolonging the patient's hospitalization time. Alginate dressing has a good therapeutic effect on nursing surgical incision fat liquefaction. Alginate dressings have strong absorption and self dissolving debridement effects, which can accelerate the dissolution and clearance of necrotic tissue in wounds and effectively control exudation. Alginate dressing can not only absorb the exudate in the wound, but also absorb and lock the deep bacteria and cell debris in the gel to achieve rapid and effective debridement. Its moist healing environment can accelerate the formation of granulation tissue and ultimately accelerate wound healing. In addition, when changing dressings, they can be completely removed, which not only protects the base of the incision but also does not affect the fresh granulation tissue, promoting the healing of the incision and significantly reducing the pain during dressing change.