Knife cuts on yourself should be immediately cleansed due to the high possibility of infection. Always clean your knife thoroughly after use. I prefer to use a file to keep my knife sharp. It puts a sharp edge on a blade quickly. A small flat file works well.
Some people prefer to use a stone which is fine too.
However you must know how to use a stone properly in order to have your knife hold an edge. The type of draw knife I use is the type also used for taking the bark off of trees. I prefer a draw knife, whose handles turn down at a 90 degree angle. With this type of scraper, my wrists and arms remain in a comfortable position with little stress on the upper side of the hand, the wrist and forearm. I find that if I use a drawknife whose handles curve slightly downward I get cramps in my hands and forearms.