Did you know zinc oxide isn’t actually a wound dressing?

A lot of nurses think it goes directly on every wound, but that’s not really what it’s made for. Zinc oxide is mainly a skin protectant. Most of the time, it’s used to protect the skin around a wound from moisture like urine, stool, or wound drainage—not the wound bed itself. There are some situations where a provider may order it for a very superficial wound, but in home health, you’ll usually be applying it to the surrounding skin.

• What is zinc oxide?
• When should you use zinc oxide?
• When should you NOT use zinc oxide?
• Put zinc oxide on skin, not wounds
• Home health situations when zinc oxide is needed
• What is the difference between “dressing” and “barrier”

What is a zinc oxide is a moisture barrier?

• It protects skin from urine, stool, and wound drainage
• it reduces friction
• it helps prevent skin breakdown
• it supports healing of superficial moisture-related skin damage

When should you use zinc oxide?

Periwound protection (Most Common Use)

This is one of the best uses in home health.

If a wound has moderate or heavy drainage, apply zinc oxide to the surrounding skin—not into the wound bed (unless specifically ordered).

It helps prevent:

• Maceration
• Skin breakdown
• Irritation from drainage

Example:
A venous leg ulcer with heavy drainage where the surrounding skin is becoming white, soft, or fragile.

---

Incontinence-associated dermatitis (IAD)

Excellent for patients with:

• Urinary incontinence
• Fecal incontinence
• Frequent diarrhea

It forms a protective barrier against moisture and irritants.

---

Stage 1 pressure injuries

When the skin is intact but shows non-blanchable redness, zinc oxide may be used (if ordered or consistent with your agency’s protocol), especially when moisture is contributing to the injury.

Remember:

• Relieve pressure first.
• Manage moisture.
• Reposition frequently.

The cream is not the primary treatment—pressure relief is.

---

Moisture-associated skin damage (MASD)

Useful when skin is breaking down because of:

• Perspiration
• Skin folds
• Wound drainage
• Ostomy leakage

---

Friction injuries

For patients who slide down in bed or chair, zinc oxide can help reduce friction and protect vulnerable skin.

When should you NOT use zinc oxide?

Deep open wounds

Do not pack zinc oxide into:

• Deep pressure injuries
• Tunneling wounds
• Undermining
• Deep surgical wounds

These wounds require dressings designed for the wound bed.

---

Heavy slough or necrotic tissue

Zinc oxide does not work on heavy slough or necrotic tissue since it does not:

• Debride
• Absorb drainage
• Control infection

An easy way to remember the difference between slough and necrotic tissue is this:

• Slough is usually yellow, tan, or white devitalized tissue that often appears moist and stringy, and it stays attached to the wound bed.
• Necrotic tissue (eschar) is typically black or dark brown, dry, thick, and leathery dead tissue.
• If you remember yellow = slough and black = necrotic tissue (eschar), you’ll be off to a good start.

Active wound infection

While it protects surrounding skin, zinc oxide does not treat wound infections.

Put zinc oxide on the skin, NOT the wound itself

Zinc oxide is made to protect the skin—not absorb wound drainage. If you put it directly on a draining wound, moisture can become trapped instead of being absorbed by the proper dressing. Over time, this can lead to maceration, where the surrounding skin becomes soft, white, and begins to break down, slowing the healing process.

Common places to put zinc oxide:

• Around wounds
• Buttocks
• Perineum
• Groin
• Skin folds
• Heels (intact skin)
• Sacrum (intact skin)

Unless the provider specifically orders it for a superficial wound or a specialized zinc oxide product is being used.

Home health situations when zinc oxide is needed and when it’s not

• Patient with diarrhea
  • Use zinc oxide on the buttocks and perineal area after cleansing to protect against moisture damage.

• Venous ulcer with heavy drainage
  • Apply zinc oxide to the periwound to prevent maceration before placing the primary wound dressing.

• Bedbound patient
  • Apply zinc oxide to intact skin over the sacrum if moisture is contributing to skin irritation, while also implementing a turning schedule and pressure redistribution.

• Skin tear
  • Zinc oxide is not typically applied directly to the skin tear itself. Instead, protect the wound with an appropriate dressing and use zinc oxide only if nearby skin needs protection from moisture.

What is the difference between “dressing” and “barrier”

If you’re ever unsure, remember this simple rule: Barrier creams protect skin. Dressings heal wounds. Zinc oxide belongs on the skin you’re trying to protect—not inside most open wounds.