Below are the main rubriks (i.e strongest indications or symptoms) of Arsenicum Album in traditional homeopathic usage, not approved by the FDA.
Skin very white and pasty looking, later yellow, scaly.
Skin dry and scaly.
Blue spots on skin.
Burning, itching parts painful after scratching.
Very painful black eruption.
Pimples burning violently, causing almost unendurable anguish.
Herpetic eruption itching and burning; eczema, dry desquamation burning pruritus.
Urticaria, large and very prominent.
Eruption resembling red petechiae, from the size of a fleabite to that of a lentil.
Eruption delays or suddenly pales, becomes livid or intermixed with petechiae, malignant sore throat dropsy; or eruption well out, but with disproportionate weakness, mild delirium, vomiting, etc. θ Scarlatina.
Black vesicles causing burning pain.
Variola, asthenic cases; pustules sink, areolae grow livid; also in hemorrhagic and septic forms.
Ulcer, with high edges; discharges black, coagulated blood.
Ulcer on leg covered with grey crust and surrounded with an inflamed border; burning and painful.
Painful sensitiveness of old ulcers.
Purulent, fetid secretions from eruptions.
Gangrenous aspect of sores.
Itch-like eruption in bend of knees.≡ more ...