When you have an open wound the fastest way to heal the open wound if it's not too bad is to wash the open wound and then apply some hydrogen peroxide to help prevent infection.
Then apply some Aloe Vera Gel to the open wound as well.
The Aloe Vera Gel will help soothe the open wound and protect it from getting bacteria in it which can cause an infection.
When an open wound starts scabbing over it's a good sign that the open wound is healing up.
You can also apply some Vaseline over the open wound which will keep moisture in the wound which will promote healing.
Of course if you get a serious enough wound then you would need stitches to heal the wound and seal it up.
But for smaller wounds that have stopped bleeding you can just apply some Aloe Vera Gel or Vaseline and the wound should heal within a week to a month depending on how severe the open wound is.
Apple Cider Vinegar can also disinfect the open wound.