This paper explores the treatment of Chronic Fatigue Syndrome following a viral infection in young people. The methodology is based on that of Dr Jan Scholten, Holland, who has systematically described the homeopathic themes of all elements in the periodic table. Three case studies are presented, Cobaltum Phosphoricum, Calcium Phosphoricum and Cadmium Phosphoricum were prescribed. The common themes and the differentiating features of these Phosphate salts are described in detail to show how the homeopathic similimum is found and cure achieved.