Myrtus communis. Obstinate cough, mostly dry, with pain in upper portion of left chest, right through to left shoulder-blade. this is a gem and has, I believe, cured more than one case of incipient consumption for me. Sulphur, Pix liquida, Anisum, Arum tri., and Theridion have a similar symptom, but Myrtus leads, unless there is decided psoric taint, when Pix liquida or Sulphur would lead.
Maharana Homoeo Reader