Below are the main rubriks (i.e strongest indications or symptoms) of Conium Mac in traditional homeopathic usage, not approved by the FDA.
Ringing; humming and roaring in the ears.
Painful sensitiveness of hearing; noise startles.
Ears feel as if stopped up, when blowing the nose.
Accumulation of ear wax, looking like decayed paper, mixed with pus or mucus; or blood-red hard wax, and oversensitive to noise.
Stitches in the ears.
Otorrhoea in the scrofulous; inflammation of mastoid cells.
Tumors and boils behind the ears.
Parotid glands swollen and hard.≡ more ...