The remedy has the tendency to develop ailments after injuries and operations and it is definitely indicated when there is a thread-like pain aggravated in the evening.
It has a peculiar modality: Faint feeling after urinating. Aconite has it also, even more strongly.
Sensation of glowing heat in different parts of the body, the face, the abdomen, the rectum etc.
Perspiration has aromatic odor.
Head
It is not difficult to construct the kind of headaches that this remedy produces if you know the general modalities. It has a dull headache during coryza especially if the watery catarrh slows down or stops altogether. There is an aggravation in warm rooms, amelioration in a cool room, worse towards the evening.
The headache is ameliorated if a cattarrh from the nose sets in. Headache ceases during menses and returns when flow disappears.
Headache in forehead, above eyes extending to nose.
Headache in side of occiput in forenoon.
Winking aggravates headache in temples.
Stitching headache in sides of forehead extending to jaw; to teeth.
Sensation as if head was wrapped up in water.
Eye
Inspite of the fact that Allium cepa has profuse bland lacrimation it may have a lot of burning, smarting, biting pain in eyes as if there was smoke in the room, causing a desire to rub them.
Lacrimation in a warm room.
Itching of eyebrows in the evening.
Dim vision – candlelight.
Ear
Pain in the ears extending to throat. Shooting in eustachian tube during coryza.