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The reason for slippery elm to appear in the list of home remedies for dermatitis is due to its mucilage content which is effective at moisturizing the skin and improving the healing process. How to use: 1  Take some slippery elm leaves to grind to form a paste.  Use the paste to apply onto the affected skin.
Use the coconut oil blend twice a day to get rid of perioral dermatitis rash in less than a week. Method 3: Grapefruit Seed Extract. Grapefruit seed extract has also proven to be effective in dealing with perioral dermatitis. The extract has potent anti-fungal, antiseptic, and anti-inflammatory properties that help your skin to recover faster.