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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Should I Do For The Itchy Bump Which Formed The Blood Blister On The Wrist?

Yesterday I had this one spot on my wrist like a poison ivy bump and it was very itchy. Today it has formed into a raised blood blister about the size of a pencil eraser. Tried to look up if it is some type of bug bite but haven't had any luck. What should I do?

Tue, 7 Jan 2014
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Dermatologist 's  Response
Hi
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 .
If the lesions continue to increase inspite of the above treatment, then you might have to see a dermatologist as in severe cases, short term courses of oral antibiotics or oral steroids may be required.

Hope it helps
Wishing you speedy recovery
Dr Geetika Paul
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What Should I Do For The Itchy Bump Which Formed The Blood Blister On The Wrist?

Hi 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 . If the lesions continue to increase inspite of the above treatment, then you might have to see a dermatologist as in severe cases, short term courses of oral antibiotics or oral steroids may be required. Hope it helps Wishing you speedy recovery Dr Geetika Paul