Rain Scald and Mud Fever in Horses: Prevention, Treatment & Natural Remedies

Understanding Rain Scald and Mud Fever

As spring arrives and wet weather becomes more frequent, horse owners face two common yet troublesome skin conditions: rain scald and mud fever. Both are caused by the same bacterium, Dermatophilus congolensis, which thrives in wet, muddy conditions.

What is Rain Scald?

Rain scald (also called rain rot) typically affects the back, rump, and neck areas where water runs off the horse's body. The condition appears as crusty scabs with matted hair that, when removed, reveal raw, weeping skin underneath.

What is Mud Fever?

Mud fever (also known as scratches or pastern dermatitis) affects the lower legs, particularly the pasterns and heels. It presents as scabby, crusty lesions that can cause swelling, heat, and lameness if left unaddressed, so speak to your vet if you are concerned.

Prevention Strategies

Prevention is always better than cure when it comes to these conditions:

  • Shelter: Provide adequate shelter during wet weather so horses can dry off properly
  • Grooming: Regular grooming helps remove mud and moisture before bacteria can take hold
  • Leg care: Gently clean and dry legs after turnout, especially in muddy conditions
  • Barrier protection: Apply protective balms like Phytopet's Herbal Skin Balm to vulnerable areas before turnout
  • Pasture management: Improve drainage in muddy areas and rotate paddocks when possible

Everyday Skin Care Approaches

If your horse does develop rain scald or mud fever, a consistent skin care routine can help alongside your vet's advice for anything more than a mild, superficial case:

1. Gentle Cleansing

Start by softening scabs with warm water (never pick them off dry, as this damages healthy skin). Use a gentle, natural wash and pat dry thoroughly.

2. Phytopet Aloe Wound Spray

Aloe vera is well known for its soothing qualities on irritated skin. Phytopet's Aloe Wound Spray combines aloe with myrrh and calendula extracts in a spray format, so you can apply it to sensitive areas without causing discomfort through rubbing.

The spray's key botanical ingredients have each been studied in animal research:

  • Myrrh: a related myrrh species showed antibacterial activity and supported wound healing in a mouse study
  • Calendula: a systematic review found calendula extract was linked to faster early wound healing in several animal studies, though results from human trials were more mixed

Together with soothing aloe, these botanicals make up our Aloe Wound Spray formulation.

3. Phytopet Herbal Skin Balm

After cleansing, Phytopet's Herbal Skin Balm creates a protective barrier while your horse's skin recovers naturally. This balm is a popular choice for mud fever on the lower legs, helping to keep moisture out while the skin heals.

The Two-Step Skin Care System

For an everyday skin care routine, Phytopet's Aloe Wound Spray and Herbal Skin Balm are designed to work together. Each product plays a distinct role:

Step 1: Cleanse with Aloe Wound Spray
The spray's myrrh and calendula content, combined with soothing aloe, supports the skin during the cleansing stage. The spray format means you can apply it to sensitive areas without causing pain.

Step 2: Protect with Herbal Skin Balm
Once the spray has dried, the balm helps seal in moisture and creates a protective barrier against further wetness while the skin heals.

Using both products together supports cleansing and protecting the skin as part of the same daily routine.

Daily Skin Care Routine:

  1. Gently clean and thoroughly dry the affected area
  2. Apply Aloe Wound Spray generously
  3. Allow to dry completely (2-3 minutes)
  4. Apply a thin, even layer of Herbal Skin Balm to seal and protect
  5. Repeat daily as part of your horse's care routine

Many horse owners find it helpful to keep both products in their grooming kit during wet weather months, using them at the first sign of irritation.

Monitoring Your Horse's Progress

As a responsible horse owner, it's important to monitor your horse's response. Most mild cases show improvement in skin condition within 5-7 days with a consistent care routine. Watch for signs such as reduced redness, new hair growth, and less sensitivity in the affected areas.

If you notice significant lameness, excessive swelling, heat in the affected areas, or if the condition spreads or fails to improve, seek professional veterinary advice. Rain scald and mud fever can sometimes need veterinary treatment, particularly if the skin becomes more seriously infected. Always trust your instincts when it comes to your horse's wellbeing.

Supporting Your Horse's Skin Health

Beyond caring for the skin directly, supporting your horse's overall skin health can reduce susceptibility to these conditions:

  • Ensure a balanced diet rich in omega-3 fatty acids for skin health
  • Maintain good immune function through proper nutrition and stress management
  • Address any underlying conditions that may compromise skin integrity
  • Keep grooming tools clean to prevent spreading bacteria

The Bottom Line

Rain scald and mud fever are frustrating but usually manageable with good prevention and a consistent care routine. Phytopet's two-step system, Aloe Wound Spray to cleanse and Herbal Skin Balm to protect, is designed to support your horse's skin as part of that routine, alongside shelter, grooming and keeping the skin dry where possible.

Remember, every horse is different, so pay attention to how your horse responds and don't hesitate to seek professional advice when needed.

Shop Aloe Wound Spray | Shop Herbal Skin Balm

Sources and further reading

Related reading

Back to blog