Yellow phosphorus (Phosphorus)
Phosphorus (Light-bearer, Morning Star) was discovered in the 17th C. in Germany, then immediately used in medicine.
Given homeopathically, it helps with coryza; inflammation (soreness) of throat and dullness (confusion) of head; frequent sneezing and obstruction of nose, especially in morning. (see A Dictionary of Practical Materia Medica by John Clarke, MD, 3rd ed. 1987, vol. 3, p.785).
Yellow phosphorus (Phosphorus) is used in: