What I used when I banged my chin up real bad about a year ago requiring stitches was a calendula cream.
Calendula (marigold) cream was used by the Germans during WWI to help battle wounds heal.
After I felt the calendula cream had did all it was going to do, I switched to a comfrey salve, containing also marshmallow, mullein, and about 6 other herbs to dissolve the scar tissue and stimulate the tissue regeneration.
It is about 90% healed now.
The calendula cream will keep the wound clean and help it to heal.