It acts best, but not exclusively, on persons with light blue eyes, flaxen hair, light eyebrows, fair, delicate skin; blonde, red-cheeked, scrofulous girls.

Sensation of cobweb on the face ( Bar. , Bor. , Graph. ).

Fan-like motion of the alae nasi ( Ant. t. , Lyc. ).

Sailors suffer with asthma “on shore.”

Stony, hard, scrofulous or tuberculous swelling of glands, especially on lower jaw and throat (thyroid, submaxillary, parotid, testes).

Diphtheria: where the membrane forms in pharynx; beginning in bronchi, trachea or larynx, and extending upwards; chest pains running upwards.

Membranous and diphtheritic croup; much rattling of mucus during cough, but no choking (as in Hepar. ); sounds loose, but no expectoration ( Ant. t. ).

Croupy symptoms with hoarseness during whooping cough; gasping for breath.

Dyspnoea: cannot inspire deep enough; as if breathing through a sponge or the air passages were full of smoke or vapor of sulphur; rattling, sawing; voice inaudible; danger of suffocation from mucous in larynx (in bronchi, Ant. t. ).

Hypertrophy of heart from gymnastics in growing boys (from calisthenics in young girls, Caust. ).

Physometra; loud emission of flatus from the vagina ( Lyc. ); membranous dysmenorrhoea ( Lac. c. ).

Cold sensation in larynx on inspiration ( Rhus , Sulph. ); > after shaving (< after shaving, Carbo an. ).

Relations. – Compare: in croup and croupy affections, [Chlor.], Hep. , Iod. , Spong.

Hard goitre cured after Iod. failed.

Brom. has cured in croup after failure of Iod. , Phos. , Hep. , Spong. ; especially in relapses after Iod.

“The chief distinction between Brom. and Iod. is the former cures the blue-eyed and the latter the black-eyed patients.” – Hering.