Carbolic Acid Therapy
Inhalations of carbolic-acid spray possess a high degree of utility in chronic nasal catarrh, hay-asthma, chronic bronchitis, and whooping-cough. A solution in water, to the proportion of one per cent, is a suitable solution for this purpose. It may be combined with the tincture of iodine. The efficacy of these inhalations in hay-asthma and in whooping-cough is probably due to the fact that carbolic acid destroys the minute organisms (cacobacteria, pollen), on the presence of which the morbid action in these maladies depends (Letzerich). The vapor of carbolate of Iodine may be inhaled in these diseases. The warmth of the hand suffices to vaporize a mixture of carbolic acid and tincture of iodine.
If you Google 'carbolate of iodine' you get mostly wombat, but one or two pieces like the one above..