Why Use Vaseline After Mohs Surgery? Does It Keep the Wound "Soft" and Healing Better?

I dont think the ointment has any inherent intrinsic value by itself. It serves to keep the area moist and optimizes the healing process. It also allows the sutures to be removed without trauma after the surgery.

All wounds heal better if kept moist and will heal faster and with less scar if kept moist, rather than let a scab form.   Any wound will finally heal, but creating a more optimal environment does make a difference.  We used to tell people to keep the antibiotic ointments on for weeks and weeks but are now finding that lengthy exposure to those ointments tended to result in contact dermatitis to one of the antibiotic ingredients in the ointments.  Simple occlusive ointments such as Vaseline or Aquaphor are the best.  That is all we hand out in this office after a biopsy or any procedure.