Reason 1: You Might be Treating the Wrong Condition

If a skin problem isn’t responding to consistent treatment, confirm the diagnosis with your veterinarian first. Misidentifying the condition can set healing back by days or weeks, and the underlying problem often worsens in the meantime.

Two of the most common examples of misidentified conditions are scratches and rain rot.

Scratches, also known as pastern dermatitis, is a bacterial or fungal skin condition affecting the lower limbs, typically around your horse’s pastern and heel bulbs. It presents with crusty scabs, thickened skin, and sometimes oozing or heat.

The infection is active in deeper tissue layers, which means clearing visible debris without addressing the underlying pathogen (disease-causing organism) won’t resolve the issue. Consistent treatment with a broad-spectrum antimicrobial and antifungal formula is essential.

Rain rot is a bacterial skin disease that produces waxy scabs along the topline, hindquarters, and face. It spreads readily in warm, wet conditions and doesn’t respond well to common wound care protocols. This infection also requires antimicrobial treatment.

Reason 2: Cleaning Once Isn’t Enough

Wound cleaning is the first step to promoting healing. But it’s often not enough to simply sanitize a wound once and leave it to heal on its own.

Horses live in environments dense with bacteria. Bedding, soil, manure, and standing water are constant sources of re–exposure for an open wound.

Within 24 to 72 hours of initial injury, bacteria begin forming biofilm, a protective matrix that anchors microbial colonies to the wound surface. Once biofilm has been established, eliminating the bacteria within it becomes significantly more difficult.

Wound healing also progresses through distinct phases. During the inflammatory phase, your horse’s body dispatches white blood cells to fight bacteria and clear cellular debris and damaged tissue.

That gives way to the proliferative phase, when granulation tissue forms and new skin begins migrating across the wound bed. A wound that receives no antimicrobial coverage at this stage can become infected just as readily as one that was never cleaned at all.

Consistent daily treatment throughout the active healing period is typically necessary to sustain progress and ensure wounds heal completely. But what owners use for that daily treatment makes a difference.

Reason 3: Your Antiseptic Might Be Working Against You

When treating wounds, many horse owners reach for antiseptics to kill bacteria and prevent infection. But some antiseptics can work against the healing process.

For example, applying hydrogen peroxide to a wound can damage fibroblasts and keratinocytes, the cells responsible for building new granulation tissue and generating new skin. Repeated applications disrupt the biological processes that wound healing depends on.

Full-strength iodine carries the same risk. Diluted, it’s effective for wound lavage. Used straight from the bottle, or in the scrub formulation that contains detergents harmful to tissue, it becomes caustic to cells along wound margins.

Healthy skin also hosts beneficial microorganisms that actively compete with and suppress harmful bacteria. Broad-spectrum antiseptics that eliminate all bacterial populations without discrimination can dismantle that defense layer, leaving a wound more vulnerable to infection after treatment.

Absorbine’s Silver Honey® Rapid Wound Repair line was designed to address this problem. It combines antimicrobial MicroSilver BG® and Manuka Honey, is pH-balanced to protect the skin’s natural microbiome, and doesn’t contain cytotoxic compounds that damage healthy tissue.

The Silver Honey® Rapid Wound Repair Spray Gel is ideal for daily maintenance and ongoing protection. It delivers a full Manuka Honey and MicroSilver BG® formula with each application and contains neem oil to deter insects from the treatment area.

Reason 4: Lower Leg Wounds Need More Support

Lower leg wounds often take much longer to heal than wounds in other areas. Below the hock and knee, your horse’s anatomy works against wound healing in ways that don’t apply elsewhere on the body.

Blood supply is the first constraint. The distal limb has poor vascular perfusion relative to the upper body. Fewer vessels mean fewer immune cells reaching the wound, slower delivery of oxygen and nutrients, and a less robust inflammatory response.

Also, the lower leg lacks the abundant muscle and fatty tissue found elsewhere in the body to support the development of a healthy wound bed. The skin has higher inherent tension, so wounds that would contract and close elsewhere tend to pull open instead.

Motion is another obstacle. Every stride flexes the lower joints, mechanically disrupting tissue that’s trying to knit together. That movement also drives proud flesh, the common name for exuberant granulation tissue.

Proud flesh occurs when the granulation bed overproduces and rises above skin level, blocking new skin from migrating across the wound surface. Although it is sometimes initially mistaken for a sign of healing, this tissue is actually a complication that halts the process.

Bandaging the lower leg limits edema (fluid swelling), reduces movement disruption, protects the wound from contamination, and maintains a moist healing environment. Many veterinarians recommend bandaging for any lower-leg wound beyond a superficial scrape.

When bandaging isn’t practical, Silver Honey® Rapid Wound Repair Maximum Strength Dry Spray can help provide a protective barrier. Its formula contains 10 times more MicroSilver BG® than the Spray Gel in a dry powder that adheres to the wound surface.

Reason 5: Dead Tissue Blocks New Growth

Dead or dying skin, dried exudate (liquid produced in response to tissue damage), and the protein-rich film that accumulates on chronic wound surfaces form a physical barrier over the wound bed. That barrier prevents healing.

Removing that barrier is called debridement, a core component of managing any wound that has stopped progressing. It can be performed surgically by a veterinarian or occur naturally through autolytic (self) debridement driven by the wound’s own enzymatic activity within a moist environment.

Manuka honey supports this natural process. It draws fluid from the wound bed, creating the moist environment that activates the body’s own enzymes to break down and shed dead tissue naturally.

Multiple studies from researchers at the University of Sydney, in Australia, demonstrated that equine wounds treated with manuka honey gel healed faster than control wounds, an outcome linked in part to autolytic debridement.

Silver Honey® Rapid Wound Repair Ointment, formulated with manuka honey, is the right choice when a wound has developed heavy or persistent scabbing. Its thicker consistency softens crusted tissue, allowing gentle removal without damaging what’s underneath.

When to Call Your Veterinarian

Home wound management has limits and recognizing them is part of responsible horse ownership.

Call your veterinarian right away if:

The wound is near or over a joint, tendon sheath, or hoof structure

The wound is a puncture, regardless of how minor it looks at the surface

You can see any exposed internal structures

There are no signs of progress after 48 to 72 hours of consistent treatment

You notice signs of systemic infection, such as fever, discharge, heat, or swelling

Granulation tissue in the lower leg is growing above skin level

If you’re not sure whether something warrants a visit, your veterinarian might ask you to send a photo. Many practitioners can provide insight and guide next steps from an image alone.

Take-Home Message

Identifying and addressing the root cause of nonhealing wounds is vital for preventing complications.

Misidentification of skin conditions, insufficient treatment frequency, use of the wrong antiseptic, lack of support for the lower legs, and dead tissue blocking the wound bed account for most cases of wounds that won’t heal in horses.

Identify which variable is wrong, address it with a product that supports rather than disrupts the healing environment, and apply it consistently throughout the entire healing window to help wounds heal quickly and completely.

*MicroSilver BG is a registered trademark of BioGate AG

Written by:

The Horse Staff

The Horse: Your Guide To Equine Health Care is an equine publication providing the latest news and information on the health, care, welfare, and management of all equids.