This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
Injections of alum alone, or combined with zinc or oak-bark, are often used with advantage, especially in leu-corrhceal discharges: a strength of about 5 gr. to the ounce is usually sufficient, and plain water should be first injected to cleanse the surface. In the early acute stages, as already mentioned, alum is not suitable, and at any time, too strong a solution applied to the vagina may cause irritation and cramping pain.
In the former affection, when the discharge is profuse and strongly alkaline, and either transparent or white, coming probably from the glands of the cervix uteri, a weak alkaline injection (1 dr. of bicarbonate to the pint), thoroughly applied, will often relieve; but injections of chlorate (2 dr. to the pint) act better, especially if the discharge be at all purulent (American Medico- Chirurgical Review, November, 1858). The permanganate should be used if there be a disagreeable odor.
In gonorrhoea, injections of the permanganate (1 to 5 gr. to the ounce) have been highly praised, especially in the second stage (Medical Times, ii., 1862). In many cases they certainly act well, but care should be taken to begin with a weak solution, for I have known pain and irritation produced by such injections. Besides the local applications of potash salts, the scalding and burning pain in micturition may be much relieved by the bicarbonate, or perhaps better by the acetate and nitrate, given internally with mucilage, etc.; it is said even that the attack may be cured by them (Lancet, ii., 1850, p. 507). In chronic cystitis with fetid urine, injections containing chlorate (4 gr. to 1 oz.) are recommended by Braxton Hicks.