Today's Herbal Health by Louise Tenney 2nd Edition says:
Horsetail or Shavegrass
(Equisetum Arvense)
Parts used: The Herb
Used in urinary tract disorders, especially lower tract infections. Aids in coagulation and helps decrease bleeding. The most important ingredient is silicic acid which helps aid circulation. Research has shown fractured bone s will heal much faster when horsetail is taken. Decoction applied externally will stop bleeding of wounds and heal them. Bathing in the herb accelerates circulation thruogh the skin and makes them especially effective for circul ation problems. swelling of broken bones, chillblains. Also pain of rheumatism an d gout is relieved. It is rich in silicon and selenium. It contains vitamine E, pantothenic aci d, PABA, copper, manganese, some sodium, cobalt, iron, and iodine.
Use for:
BLADDER PROBLEMS
BLEEDING, INTERNAL
CIRCULATION PROBLEMS
Dropsy
F eevers
GLANDULAR DISORDERS
Kidney problems
Liver, overactive
Menstruation, excessive
NAILS, BRITTLE
Nervous tension
NOSE BLEEDS
Skin rashes
Tuberculosis, pulmonary
URINARY ULCERS
URINATION, SUPRESSED
Hope this helps.
Joyce