BosGuy Brain Teaser

From: BosGuy

This week’s riddle is a tough, but don’t give up! 
Here is a hint, read the riddle very carefully.

This week’s brain teaser: 

I am the soul within the blessed,
but soon must take my leave.
And in my wake, a wound undressed
will stain a silken sleeve.

I possess the one who’s cursed,
but I cannot stay for long.
And when I go, your wounds reversed
will make the sickly strong.