The parts of the horse chestnut used as homoeopathic remedies are the bark of the branches, which is harvested in spring, and the fruits, which ripen in September–October.
Native to Asia Minor and the Balkans, the horse chestnut was introduced to Europe — first in the sixteenth century in Vienna, then in 1615 in Paris — before spreading into cultivation in the avenues, gardens and squares of many countries.
Horse chestnut bark is used as a tonic to combat capillary fragility. Horse chestnut extracts, in fact, increase the tone of venous walls thanks to the vitamin P factors present in the plant: they are widely used in the treatment of varicose veins and haemorrhoids. And not only that — also against heavy legs, cellulite and couperose.
A light decoction can be prepared with 10 grams of seeds, the husk, or better still both mixed together. This drink, though bitter, is effective against varicose veins, haemorrhoids and phlebitis.
For external use, it is preferable to prepare a strong decoction of 50 grams of fruits or bark in 1 litre of water for local baths.
Flour made from the chestnuts can be used to make poultices effective against varicose veins, chilblains and phlebitis. From roasted chestnuts a coffee can be prepared which, combined with milk, is recommended for anaemic individuals and those of a weak constitution.
Not recommended in cases of renal insufficiency. At high doses, it may cause nausea, vomiting and gastralgia.