What Dressing for a Stage 2 Pressure Ulcer?

Moist wound dressings are the standard of care for a Stage 2 pressure ulcer, with hydrocolloid and foam dressings being the two most commonly used and studied options. A Stage 2 pressure ulcer presents as a shallow open wound with a red or pink wound bed, sometimes with an intact or ruptured blister, and the goal of dressing selection is to keep that wound bed consistently moist while protecting the surrounding skin. The evidence comparing specific modern dressings to one another is surprisingly thin, but the evidence comparing any moist dressing to old-fashioned dry gauze is strong and consistent.

Why Moisture Matters for This Wound

Stage 2 pressure ulcers heal primarily through re-epithelialization, which is the process of new skin cells migrating across the wound surface to close the gap. Those cells move much more easily across a moist surface than a dry one. When a wound dries out, the surface cells dehydrate and die, forming a scab or crust that the new skin cells then have to burrow underneath, slowing everything down. A moist environment keeps growth factors and enzymes active at the wound surface longer, which speeds up the whole process.

Research on wound dressings that control moisture has shown that maintaining a specific level of hydration at the wound surface promotes both the multiplication of skin cells at the wound edge and their migration across the wound bed.¹ The key principle is not simply making the wound wet, but balancing moisture so the wound bed stays hydrated without pooling excess fluid. Occlusive and semi-occlusive dressings achieve this by trapping the body’s own wound fluid against the surface while allowing some water vapor to escape through the dressing material.²

Hydrocolloid Dressings

Hydrocolloid dressings are probably the single most studied dressing type for Stage 2 pressure ulcers. They are flat, adhesive wafers that contain gel-forming agents like carboxymethylcellulose. When wound fluid contacts the inner surface, the dressing forms a soft gel over the wound bed, maintaining moisture while the outer layer stays waterproof. Common brand names include DuoDERM and Comfeel.

In a randomized trial comparing hydrocolloid dressings against simple gauze dressings for Stage 2 ulcers, about two-thirds of the ulcers in the hydrocolloid group healed completely, compared with roughly one in six in the simple dressing group.³ A network meta-analysis pooling data from dozens of randomized trials found that hydrocolloid dressings had a meaningfully higher cure rate than sterile gauze and were associated with some of the shortest healing times among all dressing types studied.⁴

Hydrocolloids have several practical advantages. They are waterproof, so the person can bathe without disturbing the dressing. They typically stay in place for several days before needing a change, which reduces the number of times the wound is disturbed. And because they form a gel rather than sticking to the wound surface directly, removal tends to be less painful than pulling off gauze.

The main limitation is that hydrocolloids are not ideal for wounds producing a lot of fluid. They can handle light to moderate amounts of drainage, but if a Stage 2 ulcer is very wet, the dressing can become oversaturated. This leads to the gel breaking down, the adhesive lifting at the edges, and moisture leaking onto the surrounding skin, which creates its own problems.

Foam Dressings

Polyurethane foam dressings are the other front-runner for Stage 2 pressure ulcers. They are soft, spongy pads that absorb wound fluid into the foam structure while maintaining a moist environment at the wound surface. Some come with adhesive borders; others are held in place with tape or a secondary dressing. Common brands include Mepilex and Allevyn.

Foams handle moderate drainage better than hydrocolloids because the foam structure can absorb and hold more fluid. This makes them a natural choice when a Stage 2 ulcer is producing noticeable exudate. The network meta-analysis mentioned earlier found that foam dressings had cure rates comparable to hydrocolloids and similarly shorter healing times relative to gauze.⁴

A Cochrane systematic review specifically examining foam dressings for pressure ulcers found that when foams were compared head-to-head with hydrocolloids over short follow-up periods, there was no clear difference in healing rates. The evidence was rated very low certainty because the available trials were small and had design limitations.⁵ In practical terms, this means that clinicians generally choose between foam and hydrocolloid based on wound characteristics and patient comfort rather than evidence that one heals faster than the other.

Hydrogel Dressings

Hydrogel dressings are water-based gels that come as sheets, amorphous tubes, or impregnated gauze. They donate moisture to the wound rather than primarily absorbing it, which makes them particularly useful for wounds that are dry or have minimal drainage. A Stage 2 pressure ulcer that looks dry or has a wound bed that needs rehydrating might benefit from a hydrogel.

A Cochrane systematic review of hydrogel dressings for pressure ulcers, covering eleven trials, found no clear evidence that hydrogels performed differently from other dressing types in terms of complete healing or side effects.⁶ This does not mean hydrogels are ineffective; it means they belong in the same broad tier as other moist dressings, and the choice often comes down to the moisture needs of the specific wound.

One downside of hydrogels is that they typically require a secondary dressing to hold them in place and can need more frequent changes than hydrocolloids or foams. For caregivers managing wounds at home, that extra step can be a real barrier.

Alginate Dressings

Alginate dressings are made from seaweed-derived fibers that form a gel when they absorb wound fluid. They are highly absorbent and are generally reserved for wounds with moderate to heavy drainage. Most Stage 2 pressure ulcers do not produce enough fluid to justify an alginate, but in cases where there is significant exudate, an alginate can be useful as a primary layer underneath a foam or film secondary dressing.

The evidence base for alginates in pressure ulcers is limited. A Cochrane review covering six small studies found no evidence of a difference between alginate dressings and other treatments in terms of healing or side effects, and all the evidence was rated low or very low quality.⁷ Alginates have their place, but they are not a first-line choice for a typical Stage 2 wound.

No Single Winner Among Modern Dressings

If you are hoping for a clear verdict on which dressing is “best” for a Stage 2 pressure ulcer, the honest answer is that no modern moist dressing has proven clearly superior to any other. Two large network meta-analyses, each incorporating data from several dozen randomized trials, reached the same broad conclusion: moist dressings as a category outperform traditional gauze, but within the moist dressing family, the differences are small and the certainty of the evidence is low.^{4 8}

This is consistent with a broader observation in wound care research: despite a growing number of products on the market, no single therapy has demonstrated a clear benefit over others for pressure ulcer treatment overall.⁹ That can feel frustrating if you are trying to make a decision, but it also means you are unlikely to go wrong by picking any well-matched moist dressing and using it consistently.

How to Choose in Practice

Since the evidence does not single out one dressing type, the practical decision comes down to matching the dressing to the wound’s characteristics and the person’s situation. A few principles guide that match:

• Drainage level: Dry or lightly draining wounds do well with hydrocolloids or hydrogels. Moderately draining wounds favor foam dressings. Heavy drainage, which is unusual for a Stage 2 ulcer, might call for an alginate with a secondary dressing.
• Location: Sacral and heel ulcers often benefit from shaped dressings designed to conform to those areas. A flat rectangular dressing on the sacrum tends to wrinkle and lift at the edges when the person moves.
• Surrounding skin condition: If the skin around the wound is already fragile or macerated, a dressing that manages moisture well and has a gentle adhesive is important. Overly occlusive dressings that trap sweat and transepidermal moisture against intact skin can cause maceration of the periwound area.¹⁰
• Frequency of changes: Hydrocolloids and foams typically last several days, reducing the number of dressing changes. Gauze and some hydrogels may need daily or twice-daily changes. For someone in a long-term care facility or being cared for at home, fewer changes mean less disruption, less pain, and less nursing time.

Pain at Dressing Changes

Dressing removal is one of the most painful parts of pressure ulcer care, and the choice of adhesive technology makes a real difference. Traditional adhesives can bond to fragile skin and the wound bed itself, tearing new tissue when the dressing is pulled off. Soft silicone adhesive dressings address this by sticking to intact skin but not to the moist wound surface, so removal is far less traumatic.

A study of dressings using soft silicone adhesive technology found that pain scores dropped significantly at the first dressing change compared to baseline, and over 99% of dressing changes were reported as atraumatic.¹¹ A separate crossover trial comparing two foam dressings found that the silicone-adhesive version produced lower pain at removal and less maceration of the surrounding skin.¹² If pain is a significant concern, and it usually is for older adults with pressure ulcers, choosing a silicone-bordered foam or hydrocolloid can meaningfully improve the person’s experience.

The Cost Question

Modern dressings cost more per unit than gauze, which makes some facilities and caregivers hesitate. But this is one of those situations where the cheaper product ends up costing more overall because of how often it needs to be changed and how much nursing time each change requires.

A randomized trial comparing foam dressings to saline-soaked gauze for Stage 2 pressure ulcers found that while healing times were similar, patients in the foam group needed far fewer dressing changes. Total treatment costs were lower by roughly $466 per patient in the foam group, driven largely by savings in nursing time and dressing materials.¹³

Hydrocolloid dressings show a similar cost advantage. One trial in a long-term care setting found that the median nursing time for hydrocolloid treatment was one-eighth that of saline gauze, and total cost per treatment episode was lower despite the higher material cost of the hydrocolloid dressing itself.¹⁴ A separate study comparing hydrocolloid wafers to moist gauze found the daily cost of the hydrocolloid was less than a third of the daily cost of gauze dressings when nursing labor was factored in.¹⁵

The bottom-line math is straightforward: a dressing that stays on for three to five days and takes 30 seconds to apply will almost always cost less in total than a gauze dressing that needs changing once or twice a day with a nurse present for each change.

Common Misconceptions Among Caregivers

One of the more persistent beliefs among family caregivers is that wounds heal better when left open to the air. A qualitative study of family caregivers managing pressure injuries found that many were reluctant to use occlusive dressings because they believed moisture trapped against the wound would cause harm. Several caregivers sourced treatments through pharmacies or personal networks and relied on familiar ointments, powders, or basic dressings rather than the moisture-retentive products their clinicians recommended.¹⁶

This “let it breathe” instinct is understandable but wrong for a Stage 2 pressure ulcer. Exposing the wound to air dries out the wound bed, slows cell migration, and promotes scab formation that actually delays healing. Financial concerns and the perceived hassle of frequent dressing changes also contributed to caregivers avoiding recommended products. If you are caring for someone at home, the most important thing to understand is that keeping the wound covered with an appropriate moist dressing is not trapping germs or moisture in a harmful way; it is creating the environment the wound needs to close.

What a Dressing Cannot Fix on Its Own

No dressing will heal a Stage 2 pressure ulcer if the underlying cause is not addressed. Pressure ulcers develop because sustained mechanical force compresses the skin and underlying tissue against bone, cutting off blood flow. If the person is still lying or sitting on the wound without adequate pressure redistribution, the best dressing in the world will not make up for that continued damage.

Off-loading, which means keeping pressure off the wound, is the foundational intervention. For sacral ulcers this might involve repositioning schedules, specialized mattresses, or support surfaces. For heel ulcers, heel suspension devices or pillows under the calves can lift the heels off the bed. The dressing itself can offer some mechanical protection to the wound and surrounding tissues, but it is supplementary to off-loading, not a replacement.¹⁷

Nutrition also plays a role that dressings cannot compensate for. Wound healing requires adequate protein, calories, and hydration. In older adults, who make up the vast majority of people with pressure ulcers, nutritional deficits are common and directly slow healing. A clinician managing a Stage 2 pressure ulcer should be assessing the person’s diet alongside choosing a dressing.

When Wound Odor Becomes a Problem

Stage 2 pressure ulcers are shallow and generally do not produce significant odor, but if a wound has been present for a while or becomes colonized with bacteria, smell can become a quality-of-life issue. Research on chronic wounds has found that patients who report severe wound odor tend to have somewhat worse quality-of-life scores, and the odor-related component of quality-of-life questionnaires correlates with clinical assessments of smell.¹⁸ Charcoal-containing dressings or dressings with antimicrobial properties can help manage odor when it arises, though for a Stage 2 ulcer, persistent smell should prompt a reassessment of whether the wound has become infected or has progressed to a deeper stage.

Odor management matters more than it might seem on paper. Caregivers and patients often report that smell is the single most distressing aspect of living with a chronic wound, more so than pain in some cases. Addressing it is not cosmetic; it affects whether the person is willing to socialize, leave the house, or even allow dressing changes to happen.