In cases where the redness is suspected it may not be too late, a day or two after the injection, to remold the mass into such form as to relieve the acute tension.
If the redness develops early, cold applications of an antiseptic nature or ice cloths can be used to advantage. Antiphlogistin or other similar preparations applied externally give good results.
Later ichthyol, twenty-five-per-cent solution, may be applied; acetate of alumen in saturated solution seems to do well. Some operators apply hydrogen peroxid, but it gives only temporary benefit. When the capillaries have become distended and the redness is practically chronic the vessels should be destroyed with a fine electric needle, using about 20 milliampères—direct current.
Sometimes when the redness is acute and seems to persist depletion of the part does some good. This is done by nicking the skin here and there with a fine bistoury and allowing the part to bleed freely. Care should be taken not to puncture the skin too deeply, so as not to allow the injected mass to escape.
In some cases it is allowable to open the filled cavity early and remove enough of the filling to overcome the difficulty, injecting later, after the filling has become organized, to make up the deficiency.
When the redness is secondary—that is, when it develops after the connective tissue has replaced the paraffin—it is best to open up the part and excise enough of the tissue to overcome the pressure.
In a case where the author injected for a deep furrow in the forehead with a cold semisolid paraffin mixture, a secondary redness developed three months after the injection had been made, no redness having been noticed in the meantime. There was more or less swelling for two or three weeks, undoubtedly due to pressure phlebitis, which eventually subsided.
The redness in this case was only reduced by an excision of the tissue causing the trouble. The result was satisfactory.
19. Secondary Diffusion of the Injected Mass.—This is a condition that no operator can foretell, although it might be caused by a primary diffusion due to hyperinjection of so small an extent that it escaped the surgeon’s attention at the time.
Again, a site injected may at the time of operation present all the indications of a satisfactory result—that is, the tissues at the place of operation and its immediate vicinity appear perfectly loose and elastic; the injection being made easily and the contour of the defect being remedied either partially or entirely as the operator may desire; there being no mechanical anemia post-operatio, and no decided effort on the part of the tissues to cause primary elimination after the withdrawal of the needle; yet it is possible that, by such an injection, sufficient pressure may be caused upon some of the blood vessels within the limitations of the injection as to cause a decided reaction a few hours after the operation, as evidenced by a swelling, too great for the disturbance occasioned, and associated with all the signs of a fairly active inflammation.