Tested 1.0 ounce Papain dissolved into 4 ounce of DMSO gel (90%) applied topically over the spine.
Papain mix applies very sticky; must let it dry before you put on shirt, or it will glue together.
More over, the mix liquifies to a amber goo after two days. I will dispose the prepared mix, and just make 'just enough' mix for daily use. It smells bad when the mix ages.
I may recommend using a salt shaker and apply papain powder directly to DMSO applied to spinal axis.
Results after three days is still unknown. No issues, positive or negative; none is expected until about two weeks daily application.