There are many forms of healing - the most well known methods being Reiki, Spiritual Healing, Quantum Touch & Shamanic.
Healing is a form of hands on healing that allows the practitioner to channel healing energy through the horse. It is a noninvasive therapy that most horses enjoy, becoming relaxed and sleepy during the process. A session may traditionally last from twenty minutes to an hour. Healing has been found to be a profoundly positive influence in the improvement of physical, behavioural and emotional problems.
In my experience - as a healer since the late nineties - healing sessions can help to develop the bonding between horse & owner, with the horse becoming more affectionate, and the owner finding more understanding of the horse's needs.
A good Healing practitioner will be a positive optimistic person, with good sound knowledge of horses, that seeks to assist in the long term improvement of your relationship with your horse.
A practitioner should not [BY LAW] diagnose or make negative suggestions regarding your relationship or management of the horse.Several sessions may be required in order to inaugorate long lasting improvement but generally positive changes can be noticed after only one session.
If your horse is displaying physical or behavioural problems, your vet must be consulted prior to a visit from a healer.