A stupid cliche from the cinema, which has nothing to do with reality.
The kinetic energy of the shot is such that, passing through the tissues, the bullet inflicts a terrible hydraulic shock on them, spreading much wider than the wound channel itself. All tissues (muscles, blood vessels, nerves, bones, internal organs) in the immediate vicinity of the wound channel quickly die off, and those that are a little further away are damaged. Moreover, the zone of secondary damage can be tens of times wider than the wound channel.
This explains the wonderful sensations, which were so well described by a journalist with experience from a cross-topic: Impact, sharp pain - impulses from a water hammer went, the pain passes - the nerves at the wound canal are dead and cannot signal, the return of pain - inflammatory mediators pour out of the shell-shocked cells, a biochemical fire begins in the damaged tissues.
In dead muscles, microorganisms very quickly begin to multiply, which the bullet "sucks" inward from the skin surface. There, in the midst of a continuous necrosis and flowing blood, for them an ideal environment, and no antiseptics and antibiotics, especially vodka, will not corrode them from there. The most unpleasant thing is that this environment is oxygen-free and anaerobes - the most aggressive and toxic creatures of the microcosm - feel best in it.
What to do? The only thing that remains is the PHO. A truly salutary method, found in the mud and blood of the nineteenth century, and then polished like a diamond in the millstones of the gigantic meat grinders of the twentieth century - Primary Surgical Treatment, during which the ENTIRE WOUND CANAL WITH THE EDGES AND BOTTOM OF THE BOTTOM LINE is excised, stops bleeding, removes bone fragments and foreign objects pulled inward. If the wound canal goes into the abdominal or thoracic cavity, then their revision is performed - opening with a wide access (incision), followed by a careful study of ALL cavity organs for damage. If damaged, the organs are operated on. The surgeon does not stop until he examines the entire wound channel and finds a bullet (if the wound is not through), because inside the body it can have an absolutely unpredictable trajectory. Even a rubber bullet fired from a trauma.
And then, after PST, there are various treatment options, depending on the specific wound. In some cases, the wound is sutured immediately, in others, rare sutures are applied and drainages are placed, when wounded with a highly kinetic weapon (long-barreled rifled) and in combat conditions, the wound is not sutured at all. However, there are many nuances here that we will not go into.
These are the things. And you say: "vodka" ...
It would not be necessary to pour alcohol solutions into an open wound at all. It is better to rinse with hydrogen peroxide, a solution of prosthodontics, furacilin, chlorhexidine digluconate - generally wonderful. Alcohol increases the area of necrosis. - Maybe surgeons / traumatologists will correct me, but I think I'm talking about it))
For the same reason, an alcoholic solution of iodine is not poured into the wound - they are treated AROUND the edges of the wound.