How Long Should You Leave a Plaster On?

Last Reviewed: July, 2026

Minor cuts, grazes and everyday wounds can happen at any time, whether you are cooking, gardening, playing sport or enjoying outdoor activities. Knowing how long to keep a plaster on and when to change or remove it can help keep a minor wound protected during everyday activities. This guide explains what can affect how long a plaster should stay in place and when a wound may no longer need covering.

A plaster helps create a protective barrier over minor wounds, helping shield them from dirt, bacteria and friction during everyday activities. Keeping a wound covered can also help reduce the chance of it being disturbed while the skin repairs itself¹.

Covering a wound with a plaster can help:

• Protect the area while it heals.
• Reduce friction caused by movement and daily activities.
• Keep the wound protected from external factors¹.
• Help protect minor wounds while the body's natural clotting process takes place.
• Protect the wound from accidental knocks that could disturb or reopen it.

Some plasters are designed to support a moist wound healing environment, which may help support the skin's natural healing process while protecting the wound. For example, Elastoplast Hydrocolloid Wound Plasters create a moist healing environment while providing a flexible, waterproof barrier over minor wounds. Different types of plasters are designed for different needs, from everyday cuts and grazes to wounds that may benefit from longer-lasting protection.

A minor wound may no longer need a plaster when:

• The skin has closed.
• There is no bleeding or oozing.
• The area is no longer exposed to friction, dirt or activities that could disturb it.
• The plaster is no longer needed to protect the wound².

However, some areas of the body may benefit from longer protection. Fingers, hands, knees and joints are used frequently and may experience movement or rubbing that could affect a healing wound³.

Tip: If you are unsure whether a wound still needs covering, continue protecting it until it has healed enough to cope with normal daily activities. If the plaster causes skin irritation or discomfort, replace it with a fresh plaster or choose one that is suitable for sensitive skin.

How long you need to keep a plaster on depends on the wound itself, where it is located and what you are doing while it heals. Some wounds may need protection for longer, while others may only need a plaster for a short time⁴.

The size and condition of the wound can affect how long it needs to stay covered. Small, superficial cuts, grazes and blisters may only need protection until they no longer need covering, while larger or deeper wounds may benefit from longer protection. If a wound is still open, bleeding, producing wound fluid or is easily disturbed by everyday activities, it should remain covered with a suitable plaster⁵.

The location of a wound can affect how long a plaster stays securely in place. Areas that experience frequent movement, rubbing or pressure may need more regular checks.

For example:

• Fingers, hands, knees and joints move frequently, which can cause a plaster to loosen more quickly.
• Feet and heels can experience pressure and friction from walking or footwear.
• Areas exposed to moisture may affect how well a plaster stays in place.

Everyday activities such as exercise, gardening, cooking or working with your hands can affect how well a plaster stays in place. If a plaster becomes loose, wet or damaged during activity, it should be replaced to continue protecting the wound.

Different types of plasters are designed for different wounds and situations. Regular plasters are suitable for everyday protection, while some hydrocolloid plasters are designed to stay in place for longer, helping provide continuous protection while the wound remains covered.

Regular plasters are suitable for protecting minor cuts, scratches and grazes. They can generally be left in place for a few days while the wound still needs protection, provided the plaster remains clean, dry and securely attached⁶. Change it sooner if it becomes wet, dirty, loose or damaged, or if blood or wound fluid soaks through.

• Elastoplast Fabric Plasters: Flexible protection for everyday cuts, scratches and grazes. Designed to stretch with the skin’s movement, they help provide comfortable coverage during daily activities.
• Elastoplast Sensitive Plasters: Gentle hypoallergenic protection for minor wounds and suitable for sensitive skin, helping to minimise the risk of skin irritation caused by adhesives.

Waterproof plasters are designed to protect minor wounds during activities where they may come into contact with water, such as washing, showering or outdoor activities. They can generally be left in place for a few days while the wound still needs protection, provided the plaster remains securely in place and the waterproof seal is intact. Change the plaster sooner if the seal becomes damaged, the plaster becomes dirty or loose, or blood or wound fluid soaks through.

• Elastoplast Aqua Protect 100% Waterproof Plasters provide waterproof protection and are suitable for protecting minor wounds during everyday activities, including exposure to water.

Hydrocolloid plasters are designed for wounds where longer-lasting protection may be helpful. They can typically stay in place for around 3-7 days, depending on the wound and amount of wound fluid. They create a moist wound environment and form a gel-like layer as they absorb wound fluid, helping protect the wound while the plaster remains securely in place. Change the plaster sooner if the edges begin to lift, the dressing becomes saturated or the wound has healed.

• Elastoplast Second Skin Protection Hydrocolloid Advanced Plasters provide waterproof protection and a flexible fit that moves with the skin, making them suitable for areas that experience frequent movement, such as fingers and joints.

Spray and liquid plasters can be useful for minor, superficial and dry wounds where a traditional plaster may be inconvenient, such as on hard-to-reach or frequently moving areas. They form a flexible, water-resistant film that moves with the skin and gradually wears away over time.

• Elastoplast Second Skin Protection Spray Plaster creates an invisible, flexible film that covers and protects minor dry wounds such as small cuts and scratches.
• Elastoplast Second Skin Protection Liquid Plaster Concentrate allows precise application and can be suitable for small areas, including cracked skin.

A minor wound may no longer need a plaster when:

• The skin has closed.
• There is no bleeding or oozing.
• The area is no longer exposed to friction, dirt or activities that could disturb it⁴.

Tip: If you are unsure whether a wound still needs covering, continue protecting it until it has healed enough to cope with normal daily activities.

Most minor cuts and grazes heal with simple wound care. However, a wound may need medical advice if it shows signs of infection or is not healing as expected.

Signs of an infected wound may include:

• Increasing redness or swelling around the wound.
• Worsening pain.
• Warmth around the affected area.
• Pus or unusual discharge.
• An unpleasant smell.
• Feeling generally unwell or having a fever⁷.

Seek medical advice if the wound is deep, large, heavily contaminated, caused by a dirty object, or results from an animal or human bite. You should also seek help if it worsens, shows signs of infection, or you develop a fever or feel generally unwell. A healthcare professional can advise whether a tetanus vaccination or booster is needed.

Using a plaster correctly can help keep it securely in place and provide effective protection while the wound heals.

Using a plaster correctly can help keep it securely in place and provide effective protection while the wound heals. To apply a plaster effectively:

1. Ensure you wash your hands before touching the wound.
2. Clean the wound with an appropriate wound cleaning solution like Elastoplast Wound Spray to remove any dirt or debris and allow the surrounding skin to dry.
3. If suitable, apply a thin layer of Elastoplast Wound Healing Ointment before covering the wound with an appropriate plaster or dressing.
4. Choose a plaster that fully covers the wound and is suitable for the type of wound and its location.
5. Apply the plaster, making sure the wound pad fully covers the wound, and the adhesive edges stick securely to the surrounding skin.

A plaster does not always need changing at a specific time each day. Instead, check it regularly and replace it when needed. 

Change your plaster if:

• It becomes wet or dirty.
• The edges start to lift.
• Wound fluid has soaked through.
• It becomes uncomfortable or irritates the surrounding skin⁸.

Replacing a plaster when needed helps keep the wound protected during the healing process.

Some people may react to materials used in plasters, including certain adhesives or latex. Possible signs of a plaster allergy may include redness, itching, swelling or blistering around the application area. If irritation occurs, remove the plaster and consider a sensitive or hypoallergenic option. Seek medical advice if the reaction is severe or does not improve.

To remove a plaster:

1. Wash and dry your hands.
2. Gently lift one edge of the plaster.
3. Use your other hand to hold the surrounding skin taut.
4. Slowly peel the plaster back, keeping it close to the skin and removing it in the direction of hair growth.
5. Check the wound and apply a clean plaster if it still needs protection.

After removing the plaster, some adhesive residue may remain on the skin. Avoid rubbing or pulling at the area, as this may cause irritation. Read our guide to removing sticky plaster residue for further advice.

If a plaster comes off before the wound has healed, check that the area is clean and replace it with a fresh plaster if it still needs protection.

There is no set amount of time that every plaster should stay on. The right time depends on the type of wound, where it is located and the type of plaster being used. Check your plaster regularly and replace it if it becomes wet, dirty, loose or damaged, and continue covering the wound until it has healed enough that it no longer needs protection. Choosing the right plaster for your wound, whether it's an everyday plaster, a waterproof plaster, a hydrocolloid plaster or a spray or liquid plaster, can help keep the wound protected throughout the healing process.

Always see a doctor if the wound is deep, bleeds heavily or shows signs of infection like reddening, swelling or warmth.

Please note that, although these were compiled with great care, the tips and advice given on this website by no means substitute medical advice and treatment. If you have or suspect a health problem, consult a doctor and follow medical advice regardless of what you have learned on this website.

Always read carefully and follow the instructions for use or the leaflets of our products. For further information about our products, please contact us via email at ConsumerRelationsUK@Beiersdorf.com