Echinacea angustifolia, Purple Cone-flower (Rudbeckia).

We are indebted to the Eclectic school for this remarkable medicine as a "corrector of blood dyscrasia". Acute auto-infection. Symptoms of blood poisoning, septic conditions generally. Diarrhoea in typhoid. Gonorrhoea. Boils. Erysipelas and foul ulcers. Gangrene. Goitre with exophthalmic symptoms; full doses, also injecting 5-10 drops into thyroid gland. Tendency to malignancy in acute and subacute disorders. Last stages of cancer to ease pain. Venom infection. Cerebro-spinal meningitis. Puerperal infections. Tired feeling. Piles. Pustules. Acts on vermiform appendix thus has been used for appendicitis, but remember it promotes suppuration and a neglected appendicitis with pus formation would probably rupture sooner under its use. Lymphatic inflammation; crushing injuries. Snake bites and bites and stings generally. Foul discharges with emaciation and great debility.
Head.--Confused, depressed. Aches with a peculiar periodical flushing of the face, even to the neck; dizziness and profound prostration.
Nose.--Foul-smelling discharge, membranous formations protruding. Post-nasal catarrh with ulceration and fetor. Nose feels stuffed up. Right nostril raw, bleeding.
Mouth.--Canker; gums recede and bleed easily; corners of mouth and lips crack; tongue dry and swollen; sores; dirty brownish. Tongue, lips, and fauces tingle, with sense of fear about heart (Acon). White coating of tongue, with red edges. Promotes the flow of saliva.
Throat.--Tonsils purple or black, gray exudation extending to posterior nares and air-passages. Ulcerated sore throat.
Stomach.--Sour belching and heartburn. Nausea; better lying down.
Chest.--Pain as of a lump in chest and under sternum. Pain in pectoral muscles (Aristolochia).
Urine.--Albuminous, scanty, frequent, and involuntary.
Female.--Puerperal septicaemia; discharges suppressed; abdomen sensitive and tympanitic; offensive, excoriating leucorrhoea.
Extremities.--Aching in limbs and general lassitude.
Skin.--Recurring boils. Carbuncles. Irritations from insect bites and poisonous plants. Lymphatics enlarged. Old tibial ulcers. Gangrene.
Fever.--Chilliness, with nausea. Cold flashes all over back. Malarial fever.
Relationship.--Compare: Cenchris contortrix; Bothrops; Ars; Laches; Baptis; Rhus; Cistus; Hepar; Calendula.
Dose.--Tincture, one to ten drops, every two hours, and larger doses. Locally, as a cleansing and antiseptic wash.

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