Yellow Sulphuret of Arsenic. Orpiment
Needle pricks from within outwards in chest; also on forehead, right side. Sticking behind ear. Difficult respiration. Skin chafed about genitals.
Leucoderma and squamous syphilides. Sciatica and pain around the knee.
Relationship.–Arsenic sulph rub (influenza with intense catarrhal symptoms, great prostration and high temperature, purulent discharges, psoriasis, acne, and sciatica. Chilly even before a fire. Itching in various parts. Pellagra).