Is there more than one good way to treat pressure sores?

Pressure sores. Pressure sores are due to pressure which needs to be relieved in order to prevent further damage to the area in question. Seek assistance for other treatments from a clinician that is familar with this type of skin injury.
No. No studies have actually supported superiority.Most important is prevention.
Prevention is best. Don't let it happen is the best, good skin tone, good nutrition, frequent turning and avoiding pulling or yanking the patient across the bed sheeting. The skin also has to be kept dry and clean. Once redness develops, the problems multiply. The goal of treatment is clean wound so they can heal, reduce area and spread of infection, and all the above.