Hypochlorous Acid for Wound Care: How Does It Work?

Hypochlorous acid (HOCl) has become increasingly popular in wound care, but what makes it particularly interesting is that it is not foreign to the body. HOCl is naturally produced by the immune system as part of its defence against infection.

Its combination of antimicrobial activity and relatively good tissue compatibility has led to its use in wound cleansing and management across human and veterinary medicine.

What Is Hypochlorous Acid?

Hypochlorous acid is produced naturally by certain white blood cells, particularly neutrophils.

When neutrophils encounter invading microorganisms, they undergo a process known as a respiratory burst. As part of this response, they generate HOCl, which helps destroy microorganisms at the site of infection.

In simple terms, HOCl is one of the tools the immune system already uses to help control pathogens.

How Does HOCl Help With Wound Care?

A good wound cleanser needs to reduce contamination without unnecessarily damaging the healthy cells required for healing.

This is where appropriately formulated hypochlorous acid solutions can be particularly useful.

Antimicrobial Activity

HOCl has broad antimicrobial activity against bacteria, fungi and viruses.

Reducing the microbial burden within a wound helps create an environment more favourable for normal healing and can reduce the opportunity for microorganisms to establish themselves.

Biofilm Management

Biofilms are organised communities of microorganisms that attach to surfaces and become surrounded by a protective matrix.

They can develop within wounds and make microorganisms considerably more difficult to remove.

HOCl has demonstrated activity against biofilms and may help disrupt or reduce their formation, making it useful as part of appropriate wound cleaning and management.

Good Tissue Compatibility

Some antiseptics can be effective against microorganisms but also irritating or damaging to the healthy cells involved in wound repair.

One of the advantages of appropriately formulated HOCl wound products is their relatively good compatibility with healthy tissue.

This makes HOCl particularly useful when repeated wound cleansing is required.

Supporting the Healing Environment

Inflammation is a normal and necessary part of wound healing. However, excessive or prolonged inflammation can interfere with normal tissue repair.

Research suggests HOCl may help influence the inflammatory environment within wounds while controlling microbial contamination.

Rather than thinking of HOCl as something that directly "heals" a wound, it is more accurate to think of it as helping create conditions that allow normal wound healing to occur.

Why We Like HOCl for Bird Wound Care

Bird skin is thin and delicate, so wound products need to be chosen carefully.

For routine wound cleansing, we want something that can help reduce microbial contamination without unnecessarily irritating exposed or healing tissue.

This makes appropriately formulated HOCl solutions a useful addition to an avian first aid kit.

Depending on the wound, they may be useful for:

• Flushing contaminated wounds
• Cleaning superficial injuries
• Routine wound cleansing
• Managing wounds requiring repeated cleaning
• Supporting wound management alongside other veterinary treatment

HOCl Isn't a Replacement for Proper Wound Treatment

Not every wound can be managed simply by cleaning it.

Deep puncture wounds, bite wounds, heavily contaminated injuries, wounds involving joints or body cavities, significant tissue damage and wounds showing signs of infection may require additional veterinary treatment.

Depending on the injury, this could include debridement, pain relief, antibiotics, suturing, dressings or other treatment.

HOCl is a wound management tool, not a replacement for appropriate veterinary care when it is needed.

Not All HOCl Products Are the Same

The concentration, pH, stability and formulation of an HOCl product all influence how it performs.

For wound care, use a product specifically formulated and appropriately labelled for wound cleansing rather than assuming any product containing hypochlorous acid is suitable for application to living tissue.

A Useful Addition to the Bird First Aid Kit

Hypochlorous acid offers an interesting combination of broad antimicrobial activity and good tissue compatibility, making it a useful option for wound cleansing.

It works alongside the body's natural healing processes rather than replacing them.

For bird owners and rehabilitators, having an appropriate wound cleanser available before an injury occurs can make first aid considerably easier.

Looking for an HOCl wound product for your bird first aid kit? Wound Care+ is available here.

By Sam Hurley