Also known by the more generic "soft paraffin" or "petroleum jelly" is a stalwart of medical therapy, particularly as impregnated paraffin cloth gauze or "tulle gras" used to avoid sticking to wounds. Sitting somewhere next to me is a tub of the stuff - has in this instance been sitting there for years and used not
on the body but for lubricating machinery.
Its only disadvantage is that it will not
go away on its own as it does not evaporate and is not absorbed by the skin.
A touch of "personal" lubricant is useful for inserting
the flesh tunnels so that the stretch is evenly distributed around the periphery, thereafter it does not matter as you do not expect to skin to move
around the tunnel.
You really should read
lots of the other discussions here. I explain didactically that the betamethasone ointment
is much the preferred form, you want the strongest
available concentration (0.1% is available, but 0.05% more commonly used) and that you only
desire its effect on the tight part which is
of course, the part where you wish to insert the "flesh tunnel". Where you are using your fingers
to stretch, involving repeated movement and change of grip, it is appropriate to apply the ointment only after
you have completed a stretching session, so that it does not get transferred to any part other
than the tight ring by the manipulation - and then only in the tiniest amount.
If you are using the "flesh tunnel" for stretching over long periods, and having built up to progressively longer durations of "wearing" the tunnel - up to the whole 24 hours and including sleeping (clearly
only after you are perfectly happy with prolonged daytime use), then there would be little or no "after" stretching times. But because once in place, the tunnel is not
expected to move around to any significant degree, it is perfectly reasonable to use the ointment - again only in tiny amount - at the time of insertion. In fact, the ointment base is
petroleum jelly and actually provides your lubrication as well and
the tunnel also qualifies as "occlusion" which substantially
increases the potency of the steroid as it cannot escape other than by entering the skin.
Silicone tunnels are - unlike some other materials - quite resistant to damage from the petroleum.