Cushing’s disease can cause a large variety of symptoms in a horse and each of these can be addressed with herbs after consulting your veterinarian. Chaste tree berry has traditionally been used to support a horse with Cushing”s disease. Minerals are important for every horse. Use a natural mineral supplement such as kelp or bladderwrack. Use a variety of herbs to keep your horse in good condition. Milk thistle may be used to support the liver. Clover and Wormwood have been used to support horses with cancer and may be useful with Cushing’s disease.