Can I use antibacterial soap inside a wound?

No. Soap with antibacterial chemicals is one of the things not to use on an open surgical wound, because it can damage the wound tissue and slow healing. Use plain mild soap and water instead.

No. This is one of the few places where the right answer goes directly against what most people would expect.

When caring for an open surgical wound, do not use skin cleansers, alcohol, peroxide, iodine, or soap with antibacterial chemicals. These can damage the wound tissue and slow healing.

Soap with antibacterial chemicals sits in that list alongside alcohol and peroxide, and the reason is the same for all of them. The problem is not that they fail to kill bacteria. It is what they do to the tissue that is trying to heal.

That makes the difference a narrow one on a store shelf, so it’s worth being precise. Mild soapy water, gentle soap and water, and warm water and soap are all recommended across four different wound types. Soap is not the problem. The word on the label is.

Soap also has a place in wound care that isn’t inside the wound, and the two get confused. Handwashing before a dressing change matters a lot. Wash your hands using soap, for 15 to 30 seconds, cleaning under your nails, or use an alcohol-based cleanser. Antibacterial agents on your hands before the dressing change are a different question from antibacterial agents in the wound.

If an antibacterial soap has been used on a wound, this is not a crisis. But it is worth stopping, and worth mentioning if the wound has become more painful or has stopped making progress.

What to watch for

Do not use skin cleansers, alcohol, peroxide, iodine, or soap with antibacterial chemicals. These can damage the wound tissue and slow healing.

Use mild soapy water or a normal saline solution instead, soaked into a gauze pad or soft cloth and used to gently dab or wipe.

Handwashing is a separate case. Wash your hands with soap for 15 to 30 seconds, cleaning under your nails, or use an alcohol-based cleanser, before touching a dressing.

A wound that has become more painful or has stopped making progress is worth reporting. A wound is non-healing if it has not started to heal in 2 weeks or has not completely healed in 6 weeks.

Wound Wizard is general education and can’t assess your wound. Your own clinician is the right person to ask.

What we look at

  • Examining the wound and the skin around it
  • Advising what to clean the wound with
  • Checking whether the routine has damaged tissue
  • Building a treatment plan based on what they find

Sources

  1. Surgical wound care - open — MedlinePlus, U.S. National Library of Medicine https://medlineplus.gov/ency/patientinstructions/000040.htm
  2. Wound care centers — MedlinePlus, U.S. National Library of Medicine https://medlineplus.gov/ency/patientinstructions/000739.htm