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.
If the strong acid be applied in one or two horizontal bands to the prolapsed mucous membrane of the rectum, in such a degree as to cause moderate but not too deep sloughing, these bands, on healing, will leave cicatrices which by their contraction are often sufficient to cure the complaint. In children, in whom prolapsus ani is rather common, benefit is often obtained from bathing the part with a weak nitric acid lotion, and giving the same acid internally.
Condylomata on the limbs or genitals, especially when of a syphilitic origin, disappear under the external use of nitric acid.