The homeopathic remedy Avena Sativa is made from a wild oat and is in the species that includes cereal grains and the seeds of this plant.
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Hypericum Perforatum
In first aid, The Homeopathic Remedy Hypericum is considered the Arnica of the Nerves!
That horrible sharp, shooting, hot pain from injuring a nerve rich area is more controllable with Hypericum.