COPPER OLEATE FOR FRECKLES, ETC.
This is a much more effective and reliable ointment for the purpose than the preceding, which is really only suited for the milder form of sunburn, while the oleate of copper will remove the more persistent and obstinate lentigo. It is thus prepared:
Oleate of copper1 | ounce. |
Petrolatum3 | ounces. |
| Mix. |
This is to be applied in the same manner as the preceding, washing the surface of the skin, however (after the cold cream), about every third morning, with a little weak ammonia water, in order to prevent any inadvertent accumulation of copper.
Several of the preceding are well adapted for the treatment of very dark-colored and deep-seated examples of lentigo, of which, however, some seem capable of resisting all treatment of this kind. The only method of reaching these is by the complete removal of the epidermis of the part and of the upper portion of the cutis also. A Turkish bath is often useful as a preliminary for an effort of this kind, which, of course, needs the application of some disorganizing substance. Permanganate of potassium answers in this direction, but we find that a moderately strong solution of Mr. H. B. Condy’s new disinfectant—permanganate of aluminum—is undoubtedly the best of the two for this purpose. It should be applied several times until the skin has acquired a uniform brown tint. At from one to twelve hours after this is noticed it should be removed by a warm and dilute solution (about 8 or 10 per cent) of hydrochloric acid, to which a little glycerine may be added to prevent too rapid drying. Still better, however, is nitric acid, which if “painted” upon a colored spot of this kind first renders it more distinctly yellow, then orange-brown. In a day or two this becomes a deeper brown, and more or less disorganized, cracking, either round the edge, or right across the center, so that it can be readily peeled away. Freckles removed in this manner seldom crop up again, in that particular place, at all events. In this connection it is a somewhat curious fact that whereas dilute nitric acid often caused soreness and irritation when applied in this manner, a stronger acid does nothing of the kind, but quietly and quickly “deadens” that portion of the outer covering it has been applied to, so that in a day or two it can be removed quite painlessly. What is known as “French nitric acid,” of from 1.330 to 1.350 specific gravity, is very appropriate for this purpose.
COCAINE AND NITRIC ACID FOR MOLES, ETC.
The removal of either deep-seated freckles or moles is, as before hinted, not always an easy task, but nitric acid is perhaps about as good an agent for the purpose as any other. The mole should be surrounded by a little “cell” or ring of wax, so that the acid can be applied direct without fear of disorganizing the adjacent skin. As, however, nitric acid by itself sometimes occasions a good deal of smarting, etc., when applied, it is better to avoid this by mixing cocaine with it. The mixture given below answers the purpose very well indeed:
| Nitric acid1 | drachm. |
| Cocaine6 | grains. |
This should be kept ready for use in a small bottle with a good-fitting stopper. The end of a glass rod dipped in and then cautiously applied to the surface of the mole or freckle, the process being repeated once or twice a day, and the unsightly spot has its vitality destroyed without pain, being then easily and effectually removed.