Do wounds heal better when they are allowed to breathe and scab up?

Researchers have discovered that exposing a wound to the air is a terrible mistake because it creates a dry environment that promotes cell death. A handful of studies have found that when wounds are kept moist and covered, blood vessels regenerate faster and the number of cells that cause inflammation drop more rapidly than they do in wounds allowed to air out. Today's best medical advice: keep a wound moist and covered for at least five days.

A plaster wards off infection, keeps the wound moist and protects the area from sunlight, which stimulates the production of pigment and can cause discolouration. And yes, you can go ahead and pick away at that unsightly scab when no one is watching: a small initial scab will help stop the bleeding, but leaving it to mature for too long will increase scarring. The best way to remove the scab is to soak and slowly remove it, then dry the area and slather on some Vaseline.

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