Final answer:
Normal saline is the best solution to use when cleaning a wound that is healing by epithelialization. Hydrogen peroxide, alcohol, and Betadine should be avoided as they can inhibit healing and damage newly formed skin cells.
Step-by-step explanation:
When cleaning a wound that is healing by epithelialization, the best solution to use is normal saline. Normal saline, also known as sterile saline, is a solution of salt dissolved in water and is gentle on the wound while promoting healing. Hydrogen peroxide, alcohol, and Betadine should be avoided as they can inhibit healing and damage newly formed skin cells.