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What Causes Rash On Left Arm?

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Posted on Sat, 3 May 2014
Question: I noticed a square shaped rash/mark on my left arm like a week ago. At first I thought it might be a bruise but the coloring was off. It is outlined in red and normal in center. It does not bother me in anyway besides it's visually unappealing. Its not raised, no itching or burning. I have never had any skin problems. Im very knowledgeable when it comes to identifying any kind of insect bites. Any suggestions on what may be causing this peculiar mark or rash?
doctor
Answered by Dr. Dr.Albana Sejdini (2 hours later)
Brief Answer: Kindly upload a photo of rash/mark... Detailed Answer: Hi, Can you please provide a photo of your square shaped rash/mark on your left arm? That can help me assist you further. Thank you! Dr.Albana
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Follow up: Dr. Dr.Albana Sejdini (16 minutes later)
No problem, see attached photos. Just wanted to give a little more history too. I have had no skin problems, I have a mild allergy (level 1-2) to indoor/outdoor mold and Oak. I have not used or been exposed to any new products. Thank you
doctor
Answered by Dr. Dr.Albana Sejdini (1 hour later)
Brief Answer: Possible allergic reaction to mold... Detailed Answer: Hi back my dear, Thank you for providing the requested photos. I have gone through them and I think that the rash in your skin is a sign of allergic reaction. As you are reporting to have a mild allergy to mold; the rash on your left arm could be a signal to a mild reaction to mold (whether indoor/outdoor). I advise to wait for a couple of weeks to see if the rash will disappear. If not, should consult a dermatologist for further evaluation and specific management. Make sure your home is free of mold. You can ask to get your home tested for mold too. Hope it was of help! Wish fast recovery! Dr.Albana Do not hesitate to write me back if you have further queries!
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr.Albana Sejdini

General & Family Physician

Practicing since :2006

Answered : 7300 Questions

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What Causes Rash On Left Arm?

Brief Answer: Kindly upload a photo of rash/mark... Detailed Answer: Hi, Can you please provide a photo of your square shaped rash/mark on your left arm? That can help me assist you further. Thank you! Dr.Albana