A search on "iodine" in the 1899 Merck Manual returns 96 hits. "Iodide", 100 hits. Were I to repeat the search using the term "iodopin" or "iodophorm", even more results would be returned...

Below is a sampling of conditions for which iodine in one or another form was prescribed in 1899. Iodine was certainly NOT the only suggested medicine, I am listing these conditions only to show you the wide range of conditions for which iodine was once prescribed. It was prescribed in many forms, from tincture to potassium iodide to iodized oil, and administered in a variety of ways, from internal dosing to painting to injection to inhalation. Some of the indications are to be expected, such as the use of iodine for goiter or uterine fibroid. Others were unexpected, such as the use of an iodine enema in hepatitis. This manual was published well after the initial iodine enthusiasm in the early part of the century, so I imagine that these treatments were well-established in 1899.


asthma

iodine: painting the line of the pneumogastric nerve with liniment or tincture in pure spasmodic asthma

Hordeolum(stye).- see also, eyelids

Iodine tincture

Meningitis, tubercular

Iodine

Ovarian diseases

Carbolate of Iodine

Smallpox

Iodine

Emphysema

Potassium iodide

Empyela

Iodine

endometriosis

iodine, iodi-tannin, solution of iodine and tannic acid, on cotton wool

Enuresis

Iodine

epydidimitis

iodine

erysypalis

iodine, solution not too strong painted over.

exotosis

iodine, potassium iodide

fever

carbolate of iodine, in the later stages of typhoid, and in chronic malarial poisoning

fractures

iodine, antiseptic dressing

freckles

iodine

glanders and farcy: more info here: Glanders in a Military Research Microbiologist

iodine

glandular enlargements

iodine, internally and painted around, not over the gland.
iodoform, as a dressing to breaking-down glands.
iodoformogen: equitable and persistent in action on open glands.
iodole: internally
lead iodide: ointment

goiter

iodine: internally, and locally as ointment or tincture, and as injection
iodoform
iodoformogen
iodothyrine
potassium iodide

gout

iodide of potassium
iodine
iodoform
iron iodide

gums, diseases of

iodine tincture, locally

hepatitis

iodine, as enema

hepatic diseases

iodine or iodides

hernia

iodine

hydrocele

iodine

hydrocephalus

iodine, potassium iodide

hydrothorax

iodine, injections after tapping.

inflammation

iodine, locally

joint affections, see also arthritis, bursitis, etc

iodine
iodoform
iodoformogen, more diffusible and persistent than iodoform
iodole
iron iodide

keratitis- see also, corneal opacities

potassium iodide

laryngitis, acute

iodine, as inhalation and counter-irritant over neck.

laryngitis, chronic

iodine, as counter-irritant

lupus

iodine, in glycerin

measles

iodine

meningitis, tubercular

iodine

menorhaggia and metrorrhagia- see also, amenorhea, hemmorhage, uterine tumors

iodine

mercurial cachexia - a condition arising from over-use of mercury- containing medications. for more: mercurial cachexia

iodine and iodides
iodopin
iodohemol

nausea

iodine

nevus- see also, tumors, warts

iodine, paint

obesity

iodides
iodoform
iodole

odontalgia

iodine: painted on to remove tartar on teeth; and in exposure of fang due to atrophy of gum.

opthalmia- see also, blepharitis, conjunctivitis, keratitis

iodine, iodoform, iodoformogen, iodole

ozena- see also, catarrh, chronic, nasal

carbolate of iodine
glycerine and iodine
iodine: as inhalation. Much benefit is derived from washing out the nose with a solution of common salt, to which a few drops of the tincture of iodine have been added.
iodopin
iodoform
iodoformogen
iodole

pericarditis- see also, endocarditis

iodides
iodine

peritonitis

iodine

pharyngitis- see also, throat, sore, tonsillitis

iodine, iodoform
iodoformogen

phthisis- see also, cough, hemoptysis, hectic fever, perspiration, night sweats, laryngitis, tubercular, meningitis, peritonitis, etc

iodine: liniment as a counter-irritant to remove the consolidation in early stages, and to remove pain and cough later, as inhalation to lessen cough and expectoration.
iodine tincture
iodopin
iodoform: inhalation
iodole

uterine tumors

iodine