Wound healing

first aid

 * 1) Sop up the blood if applicable.  Rinse thoroughly.  Get as much debris out as possible.
 * 2) Put something oily on it so it doesn't stick to the bandage
 * 3) Cover with a clean pad & secure.

faster healing

 * Wounds heal faster covered for the first few days as long as you change the dressing regularly. Scabs act as a bandaid but make healing take longer. Clickbait citation ends with a supplement ad but seems good enough otherwise.
 * Comfrey will make you heal up faster but using it on an open wound is controversial because it's bad for your liver. I figure that means it's for acute use, not long-term use.  I read once that you shouldn't use it more than 6 weeks per year, that seems like a reasonable maximum to me.