First stop the pressure. Change your position or use foam pads, pillows, or mattresses.
If you spend a lot of time in bed, try to move at least once every 2 hours. If you’re sitting, move every 15 minutes. You may need someone to help you.
Wash the sore with mild soap and water and dry it gently.
It may help to eat a diet high in protein, vitamins A and C, and the minerals iron and zinc. These are all good for your skin. Also, drink plenty of water.