New research shows petroleum jelly may initially cause more harm than good.
A common home remedy has been to use petroleum jelly as a way to help heal a wound. The American Academy of Dermatology has even advised the use of petroleum jelly as a way to prevent scarring, but new research suggests otherwise.
After observing the tissue in both humans and animals after a cut, researchers out of the University of Leeds in England discovered that "a microscopic protein film forms rapidly over a wound as part of the natural clotting process" and applying petroleum jelly to a wound immediately will halt this process and cause more harm than good in terms of the healing process. The researchers recommended when you are cut to first clean it and then let it clot and naturally form the protective barrier. Afterwards, you should be able to apply petroleum jelly or another antibiotic ointment safely.