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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Painful Reddish Ring On The Wrist. No Itching. What Could It Be?

Hello, my younger sister woke up this morning with a painful mark on her wrist. It's white in the centre and has a red ring around it, and spans about 2cm across. It's not scaly and itchy like it would be if it was ringworm, and it's completely flat. She says nothing has burnt her or bitten her or anything. Any ideas what this could be? Thank you!
Sat, 4 May 2013
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Dermatologist 's  Response
Hi
Welcome to Healthcare Magic Forum

Looks like your sister has developed a lesion of Vector dermatitis..also known as Paederus dermatitis..
Paederus dermatitis is a peculiar, irritant contact dermatitis characterized by a sudden onset of red lesions on exposed areas of the body. The disease is provoked by an insect belonging to the genus Paederus.
Such lesions due to insect bite usually have a history of sudden overnight development.
You need to apply an antibiotic/steroidcombination cream over the lesion (something like flutibact, fucibet) twice a day.
Take oral antihistamine like levocetrizine once a day to decrease the redness

Do not use any moisturizer or lipstick over the lips till the time the lesion heals

Hope it helps
Wishing your sister speedy recovery
Dr Geetika Paul
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Painful Reddish Ring On The Wrist. No Itching. What Could It Be?

Hi Welcome to Healthcare Magic Forum Looks like your sister has developed a lesion of Vector dermatitis..also known as Paederus dermatitis.. Paederus dermatitis is a peculiar, irritant contact dermatitis characterized by a sudden onset of red lesions on exposed areas of the body. The disease is provoked by an insect belonging to the genus Paederus. Such lesions due to insect bite usually have a history of sudden overnight development. You need to apply an antibiotic/steroidcombination cream over the lesion (something like flutibact, fucibet) twice a day. Take oral antihistamine like levocetrizine once a day to decrease the redness Do not use any moisturizer or lipstick over the lips till the time the lesion heals Hope it helps Wishing your sister speedy recovery Dr Geetika Paul