Sinapis Nigra (Brassica Nigra)
Is of use in hay-fever, coryza, and pharyngitis. Dry nares and pharynx, with thick, lumpy secretion. Small-pox.
Scalp hot and itches. Sweat on upper lip and forehead. Tongue feels blistered.
Mucus from posterior nares feels cold. Scanty, acrid discharge. Stoppage of left nostril all day, or in afternoon and evening. Dry, hot, with lachrymation, sneezing; hacking cough; better lying down. Nostrils alternately stopped. Dryness of anterior nares.
Cough is relieved by lying down.
Feels scalded, hot inflamed. Asthmatic breathing. Loud coughing-spells with barking expiration.
Offensive breath, smelling like onions (Asaf; Armorac). Burning in stomach, extending up esophagus, throat, and mouth, which is full of canker sores. Hot sour eructations. Colic; pains come on while bent forward; better, sitting up straight. Sweat better when nausea comes on.
Pain in bladder, frequent copious flow day and night.
Rheumatic pain in intercostal and lumbar muscles; sleeplessness from pain in back and hips.
Compare: Sulph; Capsic; Colocy; Sinapis alba-White Mustard--(throat symptoms marked, especially pressure and burning, with obstruction in esophagus; sensation of a lump in esophagus behind the Manubrium Sterni and with much eructation; similar symptoms in rectum). Mustard oil by inhalation (acts on the sensory nerve endings of the trigeminal. Relieves pain in middle ear disease and in painful conditions of nose, nasal cavities, and tonsils).
Reference: "Pocket Manual of Homeopathic Materia Medica & Repertory" by William Boericke