Treating bed sores requires a combination of pressure relief, proper wound care, good nutrition, and close monitoring for infection. The specific approach depends on the severity of the sore, but every stage benefits from the same core principles: keep pressure off the area, keep the wound moist but clean, and give the body the fuel it needs to rebuild tissue.
Relieve Pressure First
No bed sore will heal if pressure keeps cutting off blood flow to the damaged area. Repositioning is the single most important part of treatment. For someone in bed, changing position every two to three hours is the standard recommendation, though the ideal schedule depends on the person’s mobility, skin condition, and what type of mattress they’re using. For someone in a wheelchair, shifting weight every 15 to 30 minutes helps restore circulation.
The position change should move weight completely off the sore. If the wound is on the tailbone, for example, turning onto the side takes pressure off that spot. Pillows or foam wedges between the knees, under the calves, or behind the back can help hold a new position and prevent bony areas from pressing against each other.
Choose the Right Support Surface
A standard hospital or home mattress often isn’t enough once a pressure sore has developed. Specialized mattresses and overlays distribute weight more evenly and reduce the force on vulnerable areas. The options fall into a few categories:
- High-density foam mattresses work for people at moderate risk or those with a history of healed pressure injuries. They passively redistribute weight without any mechanical components.
- Low air loss mattresses push a gentle flow of air through tiny holes in the surface, which helps manage moisture and reduce friction against the skin. These are useful for sores that are producing drainage.
- Alternating pressure mattresses have air cells that periodically inflate and deflate in different zones, cycling pressure from one area to another. These are typically recommended for high-risk patients and those with stage 3 or stage 4 sores.
Your healthcare provider or a wound care specialist can help match the surface to the severity of the sore. Someone with a healed pressure injury also benefits from an upgraded surface, since previously damaged skin is weaker and more prone to breaking down again.
Clean and Dress the Wound Properly
Keeping the wound clean without damaging new tissue is a balancing act. For mild sores, gently rinsing with saline or clean water is usually enough. For deeper wounds, irrigation with a syringe creates enough pressure to flush out debris and bacteria without harming the wound bed. Avoid antiseptics like hydrogen peroxide or iodine directly in the wound, as these can damage healing tissue.
If dead tissue is present in the wound (it looks yellow, gray, or black), it needs to be removed through a process called debridement. There are several approaches. Autolytic debridement uses moisture-retaining dressings like hydrocolloids or alginates to let the body’s own enzymes soften and dissolve dead tissue naturally. Enzymatic debridement involves applying a topical agent that breaks down dead tissue. Sharp debridement, where a clinician cuts away dead tissue with a scalpel, is faster and used when the wound needs more aggressive cleaning. Your provider will determine which method fits the situation.
Match the Dressing to the Wound
The right dressing depends on how deep the sore is and how much fluid it’s producing. The goal is always the same: maintain a moist healing environment without letting the wound get waterlogged or dry out.
- Dry wounds benefit from hydrogel dressings, which are made of over 95% water and can release moisture into the wound bed, rehydrating tissue and supporting healing.
- Lightly draining stage 2 sores do well with hydrocolloid dressings. These contain gel-forming agents that absorb light fluid and create a moist environment under a protective seal. They also promote autolytic debridement.
- Moderately to heavily draining stage 3 and 4 sores need more absorbent options. Foam dressings have an absorbent inner layer and a protective outer layer that prevents leakage and blocks bacteria. Calcium alginate dressings form a gel when they contact wound fluid, making them excellent for managing heavy drainage. Hydrofiber dressings are even more absorbent than alginates and also support autolytic debridement.
- Film dressings are thin, transparent sheets that let oxygen and moisture vapor pass through while blocking bacteria. They don’t absorb much on their own and are often used as a cover over another dressing or to protect very shallow wounds.
Alginates and hydrofiber dressings need a secondary dressing on top to hold them in place. Foam dressings are not appropriate for wounds that are barely producing any fluid, as they can dry the wound out. Getting the moisture balance right matters because a wound that’s too dry won’t heal, and one that’s too wet breaks down the surrounding skin.
Boost Nutrition for Healing
Wound healing burns through calories and protein at a surprisingly high rate. Without adequate nutrition, even a well-managed wound will stall. Adults with pressure sores who are at risk of malnutrition should aim for 30 to 35 calories per kilogram of body weight per day. For a 150-pound person, that translates to roughly 2,000 to 2,400 calories daily.
Protein is especially critical because it provides the building blocks for new tissue. The recommended intake is 1.25 to 1.5 grams of protein per kilogram of body weight per day. For that same 150-pound person, that’s about 85 to 100 grams of protein daily, which is significantly more than most people eat without making a deliberate effort. Eggs, chicken, fish, Greek yogurt, beans, and protein supplements can help close the gap.
Two micronutrients play a direct role in wound repair. Vitamin C supports collagen production, and supplementation is recommended when a dietary deficiency is diagnosed. Zinc supports immune function and cell growth. If zinc deficiency is present, supplementation up to 40 mg of elemental zinc per day is appropriate, but higher doses can actually cause problems by interfering with copper absorption. For people with severe (stage 3 or 4) or multiple pressure sores whose nutritional needs can’t be met through regular high-calorie, high-protein meals, supplements containing protein, arginine, and micronutrients are recommended.
Watch for Signs of Infection
Any open wound can become infected, and pressure sores are particularly vulnerable because they tend to occur in areas exposed to moisture and bacteria. The warning signs to watch for include warmth or increased redness around the sore, swelling, pus or cloudy drainage, a foul smell coming from the wound, and fever. Any of these signals call for prompt medical attention.
Deep pressure sores carry an additional risk: the infection can spread to the underlying bone, a condition called osteomyelitis. Bone infection can reduce joint and limb function and requires more aggressive treatment. This is one reason why stage 3 and 4 sores need professional wound care oversight, not just home management.
When Wounds Need Advanced Treatment
Some bed sores don’t respond to standard repositioning, dressings, and nutrition. When a wound is chronic, not healing as expected, or at high risk of complications, negative pressure wound therapy (sometimes called VAC therapy) may be recommended. This treatment places a sealed dressing over the wound connected to a pump that applies gentle suction. The suction removes excess fluid and bacteria, increases blood flow to the area, and draws the wound edges closer together.
Negative pressure therapy is typically used for complex or reopened wounds, wounds that can’t be surgically closed due to infection risk, and chronic sores that have stalled despite other treatments. The device is portable enough to use outside the hospital in many cases. For the most severe sores, surgical options like skin flaps or grafts may be necessary to close the wound when the body can’t do it on its own.
Putting a Treatment Plan Together
Treating a bed sore effectively means addressing every factor at once. Repositioning alone won’t work if the wound dressing is wrong. The best dressing won’t matter if the person isn’t eating enough protein. And none of it helps if pressure keeps being applied to the same spot. A practical daily routine includes scheduled position changes (set timers if needed), regular wound checks and dressing changes, high-protein meals and snacks, and keeping skin clean and dry around the wound while keeping the wound bed itself moist.
Mild stage 1 and stage 2 sores often heal within days to weeks with consistent care. Stage 3 and 4 sores can take months and almost always require professional wound care. Healing times vary widely based on the person’s overall health, nutritional status, and whether complications like infection develop. Tracking the wound’s size and appearance at each dressing change helps you and your care team judge whether the current plan is working or needs adjustment.