There are a number of cures. The least desirable, in fact the one you don’t want to use at all, is rubbing oil, silicone, graphite, or anything else into the interior of the holster. Anything that will soften the leather is BAD, as the holster will quickly lose its grip. You can put the plastic bag the holster came in over the gun, shove it into the leather, and leave it overnight. This works, too, I am told, as does wrapping the gat in Saran.