My routine used to be shower, heat pack, injection, cool
pack/heat
pack, dance around a bit, apply fresh alo vera to site, let it all dry and then put clothes on. The stinging was most pronounced in my stomach.
And then, at about the 3 week mark, I just gave up. Now my routine consists of the 20 second injection after my shower and that is it. The stinging is still present, and I avoid my stomach at all costs, but I guess I just wanted it all over as soon as possible.