Treating bed sores in an elderly person starts with relieving pressure on the wound, keeping it clean and moist, and making sure the body has enough protein and nutrients to rebuild tissue. The specific approach depends on how deep the sore has become. A shallow stage 2 pressure injury heals in roughly 23 days under good conditions, while deeper wounds can take months and may need professional wound care or surgery.
Understanding the Four Stages
Pressure injuries are classified into four stages based on depth, and treatment escalates with each one. Knowing what you’re looking at helps you respond appropriately.
A stage 1 injury is intact skin with a reddened area that doesn’t blanch (turn white) when you press on it. In darker skin tones, the discoloration may be harder to see but the area often feels warmer or firmer than surrounding skin. This stage is fully reversible with pressure relief alone.
Stage 2 involves a shallow open wound with a pink or red wound bed, or an intact or ruptured fluid-filled blister. There’s partial loss of the top layers of skin, but no deeper tissue is exposed. These sores heal in an average of about 23 days. Smaller wounds (under roughly 3 centimeters) heal faster, averaging 19 days, while larger ones can take 31 days or more.
Stage 3 means full-thickness skin loss. Fat may be visible in the wound, but bone, tendon, and muscle are not exposed. These don’t occur in thin-skinned areas like the bridge of the nose or the ear, where there’s no fat layer beneath the skin. Stage 3 injuries need professional wound management.
Stage 4 is the most severe, with full-thickness tissue loss exposing bone, muscle, or tendon. These wounds carry serious infection risk and typically require treatment by a wound care specialist or surgeon.
Relieving Pressure on the Wound
No bed sore will heal if pressure keeps cutting off blood flow to the area. Repositioning is the single most important intervention, and the schedule depends on the person’s risk level. NICE guidelines recommend that people at risk of pressure injuries change position at least every six hours, while those at high risk should reposition at least every four hours. In practice, many caregivers turn bed-bound patients every two hours, especially when a wound is already present.
If the person can’t reposition themselves, you’ll need to help, ideally using a draw sheet or slide board to avoid dragging skin across the bedding. When moving someone onto their side, aim for a 30-degree tilt rather than a full side-lying position, which concentrates pressure on the hip bone. Pillows between the knees and behind the back help maintain position. For wheelchair-bound individuals, shifting weight every 15 to 30 minutes is the goal, even if it’s just a brief lean to one side.
Specialized Mattresses and Overlays
A standard hospital or home mattress often isn’t enough. A Cochrane overview of support surfaces found that static air mattresses, alternating pressure air mattresses, and gel pads all reduce pressure ulcer risk compared to basic foam mattresses. Alternating pressure mattresses, which inflate and deflate different air cells on a cycle, are probably the most cost-effective option for prevention and are widely used in both hospitals and home care. Reactive air overlays (placed on top of an existing mattress) also showed meaningful benefit, cutting pressure ulcer incidence roughly in half compared to foam alone. Your loved one’s doctor or home health agency can help determine which surface is appropriate based on the wound’s severity and the person’s mobility.
Cleaning the Wound
For open bed sores, gentle cleansing removes debris and bacteria without damaging new tissue. Normal saline (sterile salt water) is the standard recommendation. Research comparing antiseptic solutions like iodine and other antimicrobial cleansers to plain saline has found no additional healing benefit from antiseptics for chronic wounds, with no difference in infection rates, pain, or hospital stays. Saline is also less likely to irritate fragile skin.
Use a squeeze bottle or syringe to irrigate the wound gently rather than scrubbing it. The goal is enough pressure to dislodge loose debris without disrupting the tissue that’s trying to heal. Clean the wound at each dressing change.
Choosing the Right Dressing
Modern wound dressings maintain a moist environment, which is essential for tissue repair. Plain dry gauze is outdated for this purpose. A network meta-analysis comparing multiple dressing types found that foam dressings and hydrocolloid dressings both significantly improved healing rates compared to sterile gauze.
For stage 1 and early stage 2 wounds, a thin hydrocolloid dressing or foam pad protects the area while keeping it moist. Hydrocolloids are adhesive, waterproof patches that absorb light drainage and can stay in place for several days.
For stage 2 and shallow stage 3 wounds with moderate drainage, foam dressings work well because they absorb more fluid while still maintaining moisture at the wound surface. They’re soft and conformable, which matters for bony areas like heels and the tailbone.
For deeper or heavily draining wounds, silver-containing dressings showed the shortest healing times in network analysis, likely because of their antimicrobial properties. These are particularly useful when infection is a concern. Polymeric membrane dressings showed the best overall cure rates among moist dressings studied, though the right choice depends on the specific wound characteristics.
The best dressing depends on the wound’s depth, location, and how much fluid it produces. A wound care nurse can assess these factors and recommend a dressing schedule.
When Dead Tissue Needs Removal
Deeper pressure injuries often develop dead tissue (black, brown, or yellow material) in the wound bed. This necrotic tissue blocks healing and breeds bacteria, so it usually needs to be removed through a process called debridement. Several methods exist, and the right one depends on the wound and the patient’s overall health.
Autolytic debridement is the gentlest approach. It uses the body’s own enzymes to break down dead tissue, helped along by moisture-retaining dressings like hydrocolloids or hydrogels. This method is pain-free, non-invasive, and only targets dead tissue while leaving healthy tissue alone. It’s slower than other methods but well-suited for elderly patients who may not tolerate more aggressive techniques.
Enzymatic debridement uses a topical ointment containing enzymes (most commonly collagenase) that chemically digest dead tissue. It works faster than autolytic debridement and is useful when the wound needs cleaning up but surgical removal isn’t practical. The ointment is applied directly to the wound at each dressing change.
Surgical debridement, where a clinician cuts away dead tissue with a scalpel or scissors, is the fastest method but requires a trained professional and can be painful. It’s typically reserved for stage 3 and 4 injuries with significant necrotic tissue or signs of infection.
Nutrition for Wound Healing
Healing a pressure injury demands significant energy and building materials from the body, and many elderly people are already undernourished. Protein is the most critical nutrient for tissue repair. The recommended intake for someone healing a pressure ulcer is 1.25 to 1.5 grams of protein per kilogram of body weight per day. For a 150-pound person, that translates to roughly 85 to 102 grams of protein daily, which is substantially more than most older adults typically eat.
Practical ways to increase protein include adding eggs, Greek yogurt, cottage cheese, or protein powder to meals and snacks. For someone with a poor appetite, small frequent meals work better than three large ones. Oral nutritional supplements designed for wound healing often combine high protein with specific micronutrients.
Vitamin C and zinc both play important roles in tissue repair. Clinical trials on pressure ulcer healing have used vitamin C doses of 500 mg once or twice daily, paired with 9 to 30 mg of zinc per day. Arginine, an amino acid that supports blood flow to wounds, is another common addition. Several studies used formulas combining 500 mg vitamin C, 9 to 30 mg zinc, and 6 to 9 grams of arginine alongside high-protein nutrition, with positive results. If your loved one has kidney disease or other conditions that affect nutrient processing, check with their doctor before adding supplements.
Recognizing Infection Early
Infected pressure injuries can become life-threatening in elderly patients, so catching infection early matters. The classic signs of infection (redness, swelling, warmth, pus) don’t always show up reliably in chronic wounds. Research has found that other indicators are actually better predictors: foul odor, discolored or fragile granulation tissue, excessive or watery drainage, pocketing at the base of the wound, and wound breakdown after a period of improvement.
Increasing pain and wound breakdown are particularly reliable warning signs, each showing 100 percent specificity for infection in one study. If the wound starts to smell bad, produces greenish or heavy discharge, bleeds unexpectedly, or if the person develops a fever, these are signs that the wound has likely become infected and needs medical evaluation. Systemic infection from a pressure ulcer can progress to sepsis, which is a medical emergency.
Daily Care Routine
Treating a bed sore at home involves a consistent daily routine. Keep the skin around the wound clean and dry while keeping the wound itself moist under its dressing. Check the wound at each dressing change for changes in size, color, odor, or drainage. If you notice the wound getting larger, developing an odor, or producing more fluid, that signals a change in treatment is needed.
Protect intact skin on pressure-prone areas (heels, tailbone, shoulder blades, hips) with barrier creams to prevent moisture damage from incontinence or sweat. Keep bed linens smooth and free of wrinkles, which can create localized pressure points. Make sure the person is drinking enough fluids, as dehydration slows healing and makes skin more vulnerable. For someone with incontinence, prompt cleaning and barrier protection is essential, since prolonged moisture exposure dramatically increases skin breakdown risk.