Below are the main rubriks (i.e strongest indications or symptoms) of Arsenicum Album in traditional homeopathic usage, not approved by the FDA.
Heaviness, sensation of weakness, and confusion in the head, chiefly in a room, mitigated in the open air.
Stupor and confusion.
Tearing in the head, with vomiting, when raising up the head.
Sensation, on moving the head, as if the brain struck against the cranium.
Cracking or buzzing in the head.
Excessive swelling of the head and face.
Erysipelatous burning, swelling of the head (face and genitals) with great weakness and coldness; worse at night.
Eruptions, white, dry, like bran; burning, itching on the forepart of the head; when scratching it burns and bleeds violently.
Pains, throbbing, oppressive, stunning, or drawing, shooting and burning in the head, often on one side only, and chiefly above one eye, or at the root of the nose, or in the occiput, and sometimes with inclination to vomit, and buzzing in the ears.
Tension, tightness, and pain as of a bruise in the head.
Headache amel. by applying cold water, or by walking in the open air.
The pains in the head often occur periodically, and esp. after each meal, in the morning, at night, and in the evening in bed; and sometimes they are insupportable, and accompanied by tears and wailings, being mitigated for a moment by cold water, but returning much more strongly afterwards.
Pain in the scalp and in the integuments of the head, as if they were ulcerated or bruised, greatly increased by the slightest touch.
Gnawing or burning itching, scurfy eruptions, pustules, and corroding ulcers on the scalp.
Burning, biting boils on the scalp, with sensitiveness to touch and cold.≡ more ...