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Itchy bump on elbow, swelling, arm heaviness. What is this?

hello, I recently had an itchy bump on my elbow (the joint ) and when I scratched the bump it started to swell minutes later and I feel a slight heaviness in my arm too. I ve had this before in the same spot and I thought it was a spider bite .This time it came out of nowhere but the swelling wasn t as severe as before. I m completely clueless? I don t have any photos because the swelling went down but it was warm to the touch and pinkish red.
Asked On : Thu, 4 Apr 2013
Answers:  1 Views:  119
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Diseases and Conditions
Dermatologist 's  Response
Welcome to Healthcare Magic Forum

Looks like you have 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.
You need to apply an antibiotic/steroid combination cream over the lesion twice a day.
Take oral antihistamine like levocetrizine once a day to decrease the swelling.

Do not use any moisturizer or oils till the time the lesion heals .

Hope it helps
Wishing you speedy recovery
Dr Geetika Paul
Answered: Sat, 22 Jun 2013
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