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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Is The Two Inch Dark Spot On Forearm Which Turns Red?

I have roughly a two inch darker spot on my forearm that just came up out of no where, I originally thought it was dirt or something, it has now been there for around 2 weeks with no change, it doesn't hurt or itch or anything. The other day it turned a little more red when I was outside but that went away.
Wed, 8 Jan 2014
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Dermatologist,  's  Response
Hi. Thanks for posting your concern at HCM.

I would suspect a possibility of Light Eruption(PMLE) since it has happened on the forearm, which is usually exposed to sunlight.

I normally ask my patients with PMLE to wear full sleeved clothing OR protect all the exposed body parts with regular daily use of a broad spectrum sunscreen.

A moderately potent steroid cream containing either mometasone or clobetasol can be applied over the patch once daily at night for a few days.

I would advice that you see a dermatologist for a confirmatory diagnosis.


take care
regards
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What Is The Two Inch Dark Spot On Forearm Which Turns Red?

Hi. Thanks for posting your concern at HCM. I would suspect a possibility of Light Eruption(PMLE) since it has happened on the forearm, which is usually exposed to sunlight. I normally ask my patients with PMLE to wear full sleeved clothing OR protect all the exposed body parts with regular daily use of a broad spectrum sunscreen. A moderately potent steroid cream containing either mometasone or clobetasol can be applied over the patch once daily at night for a few days. I would advice that you see a dermatologist for a confirmatory diagnosis. take care regards