Povidone-Iodine Dressings Explained: How They Work and How They're Used

Povidone-iodine (PVP-I) dressings are widely used in clinics, aged care and community nursing. Inadine is one of the best-known: a knitted viscose dressing impregnated with povidone-iodine ointment.

How they work

Povidone-iodine is an antiseptic. The dressing slowly releases iodine at the wound surface, while the low-adherent mesh helps reduce sticking to the wound bed, so changes are more comfortable.

The colour-change indicator

A fresh dressing is a rich orange-brown. As the iodine is used up, the colour fades towards pale or white. A dressing that has lost its colour is a signal that it's due to be changed, according to the clinician's plan.

Where they're commonly used

Health professionals use PVP-I dressings on a range of superficial wounds, such as minor burns, abrasions, cuts and some ulcers, where an antiseptic, low-adherent contact layer is wanted. They're a primary dressing and need a secondary dressing (such as an absorbent pad and tape or bandage) on top.

General application steps

1. Wash your hands and put on gloves.
2. Clean the wound as directed (often with sterile saline).
3. Open the sterile packet and remove the backing papers.
4. Place the dressing directly onto the wound.
5. Cover with a suitable secondary dressing and secure it.
6. Change it as directed by the clinician, or when the colour has faded.

Who should be cautious

Iodine dressings aren't suitable for everyone. Product information typically lists cautions or contraindications for people with iodine sensitivity, thyroid disorders, pregnancy or breastfeeding, newborns, people taking lithium, and use on large wounds or for long periods. Always read the product leaflet and follow the advice of a doctor, nurse or pharmacist.

Choosing a size

Pick a size that covers the wound with a small margin. Smaller dressings (around 5 × 5 cm) suit small cuts and abrasions; larger ones (around 9.5 × 9.5 cm) suit bigger areas and can be cut to shape.

Storage

Store dressings in their sealed packets, away from heat and direct light, and use them before the expiry date. Don't use a dressing if the packet is damaged.

Primary vs secondary dressings

A primary dressing touches the wound. A secondary dressing covers it, absorbs fluid and holds everything in place. Povidone-iodine dressings are primary dressings, so they're used with a pad, film or bandage on top.

Signs a wound needs professional review

• Increasing pain, redness, warmth or swelling
• Pus, a bad smell or a sudden increase in fluid
• Red streaks spreading from the wound, or fever
• A wound that isn't improving after a week or two
• Wounds on the feet of people with diabetes or poor circulation

Stocking wound care in a clinic or facility

Keep a small range of sizes, store them in a clean dry cupboard, rotate stock so older items are used first, and check expiry dates regularly. Buying by the box is usually cheaper per dressing than buying singles.

Frequently asked questions

What is Inadine used for?

Inadine is a povidone-iodine dressing used by health professionals on a range of superficial wounds, such as minor burns, abrasions, cuts and some ulcers, where an antiseptic, low-adherent contact layer is wanted.

Why does the dressing change colour?

The dressing starts orange-brown because of the iodine. As the iodine is used up at the wound, the colour fades, which signals that the dressing is due to be changed.

Who shouldn't use iodine dressings?

Product information lists cautions for people with iodine sensitivity or thyroid disorders, during pregnancy or breastfeeding, for newborns, for people taking lithium, and for large wounds or long-term use. Always check with a doctor, nurse or pharmacist.

Can I cut a povidone-iodine dressing to size?

Many non-bordered dressings can be cut to fit the wound using clean scissors while keeping the dressing sterile. Check the manufacturer's instructions for the specific product.

Related guides

• What Should Be in a Workplace First Aid Kit? An Australian Checklist
• Protecting Skin in Continence Care: A Practical Routine for Carers
• Nitrile vs Vinyl vs Latex Gloves: How to Choose the Right Disposable Glove

Sources and further reading

• Therapeutic Goods Administration (TGA)
• Wounds Australia
• healthdirect Australia

Last reviewed: October 2026 by the Innovation Project team.

This article is general information only and isn't a substitute for advice from a doctor, nurse or other health professional who knows your situation.