Cypripedium pubescens, Yellow Lady's Slipper.

The skin symptoms correspond to those of poisoning by Rhus, for which it has been found an efficient antidote. Nervousness in children; from teething and intestinal troubles. Debility after gout. Hydrocephaloid symptoms, result of long, exhausting diarrhoea. Sleeplessness. Cerebral hyperasthesia in young children often the result of overstimulation of brain.
Head.--Child cries out at night; is wakeful and begins to laugh and play. Headaches of elderly people and during climacteric.
Relationship.--Compare: Ambra; Kali brom; Scutellar; Valerian; Ignat. Skin relatives: Grindelia; Anacard.
Dose.--Tincture, to sixth attenuation. For Poison Oak, 5 drops of tincture per dose, also locally.

Boericke's Materia Medica, 1901, was written by William Boericke. Excerpt: The Tinctures.