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: When perioral dermatitis affects the chin and the skin next to the nose, it often looks like acne at first appearance.But you can tell that it is not acne by noticing there are no comedones (blackheads or whiteheads).: It can be challenging to differentiate perioral dermatitis from eczema/AD at first glance.Eczema will often appear elsewhere on the face or the body and not be confined to the region around the mouth or eyes.Rosacea can also affect the forehead and nose (unlike perioral dermatitis) and is usually more wide-spread on the cheeks.Telangiectasia (dilated purple capillaries) appears in rosacea but not in perioral dermatitis. While the exact cause of this condition is unknown (according to biological science), it is often triggered by the use of potent (fluorinated) topical steroids on the face or elsewhere on the body.Persons with oily skin who do not properly cleanse with water and soap (or other cleanser) are also susceptible.Daily use of heavy sunscreens also tend to trigger this type of rash.
: At the initial stages of rosacea, flushing occurs and erythema can occur without papules or pustules (though these appear at later stages).
Perioral dermatitis eruptions appear on the delicate areas of the face where drying substances (like benzoyl peroxide found in acne medications) make the skin too dry.
It is believed that in individuals with constitutionally dry skin, the overuse of moisturizers causes the surface of the skin (the horny layer) to be constantly artificially hydrated, thus affecting this layer’s ability to inhibit the growth of bacteria.
Our most widely-read post on this blog is about a rash I had around my mouth and how I discovered what triggered it and how I finally healed it.
That particular rash was the result of an allergic reaction to propolis.