This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Allium Cepa @, a tincture made froin a very acrid red onion. Eliminating all hypothetical matter, this tincture has been found of real value in the colds of vocalists in which the greatest annoyance is experienced upon entering a warm room. Give doses of 3 minims in diluted glycerine.