[header] How to heal a split lip [title] Wash your hands. [step] Before you touch your face or injured lip, place your hands under warm water for at least 20 seconds and lather them up with antimicrobial soap. If you are outside and without water access, run an alcohol wipe over your hands before proceeding. 
This minimizes the germs that could transfer from your fingertips to the cut. [title] Wash the wound with water and mild soap.