Lecture XVI

In my opinion much importance should be attached to these methods in a not distant future. Color therapy, not only light treatment, will soon play a great part. The interplay of conscious and unconscious elements is important in itself, and should be given scope. Through this interplay, we shall also be able to form a sound judgment of the special effects of medicinal substances as administered in baths: there is a great difference according to whether the external application of any substance to the human organism produces the sensations of warmth or cold. If anything, whether compress or bath, acts in a cooling way upon me then the effect is to be ascribed mainly to the substance employed; if a cure follows, it will be due to the substantial remedy employed. But if the application produces a sensation of warmth, e.g., a warm compress, its effects are not due to the substance used, for that is almost a matter of indifference, but to the action of warmth itself; and the action of warmth is identical from whatever quarter it may operate. In applying cold compresses, care should be taken to mix the particular liquid employed, whether water or not with this or that substance. These substances can be made efficasious, if they are soluble at low temperatures, when used in cold water. On the other hand—with the exception of ethereal [etheric] substances which are powerfully aromatic and exercise their specific effects even at high temperatures—there will be little specific substantial effect in the case of materials which are easily soluble when in solid form. They do not easily operate even in warm compresses and hot baths. Substances which are phosphoric or sulphuric, as, e.g., sulphur itself, used as accessories to warm baths, exercise their peculiar healing properties most fully.