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Random small itchy bumps that appear on hands or arms, no head on them, no halo, no liquid. What could this be ?

I seem to have random small itchy bumps that appear only on my hands or arms. Only one will appear and I do not notice it until I itch it. If I leave it alone, it disappears. If I scratch it, it looks like a mini mosquito bite. They are slightly red, but not really dark red. They fade back to skin toned. They appear sporadically and never more than one at a time. Within a few hours if I do not scratch them, they completely disappear and do not itch again. I live in a very dry environment where the weather is very cold outside (Arctic). My apartment has mostly laminate floors with a few area rugs. I do have a cat, but she does not have fleas. (She did, but that was 4 months ago and she was fully treated) The bumps do not look like flea bites as they are not dark red or continually itchy. There is no head on them, no halo, no liquid. Just a random small itchy bump about 1-2mm. I seem to be getting about 1-2 a day. Every time in a different spot, that eventually disappears. What could this be?
Asked On : Mon, 28 Jan 2013
Answers:  1 Views:  686
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Diseases and Conditions
Dermatologist 's  Response
Dec 2013
Welcome and thanks for posting your query to Healthcare Magic.
After reading your query it appears the possibility of "Urticaria". It is a common condition caused by bursting of allergy producing cells known as "mast cells". As the chemical inside them is released it produces a rash which you have mentioned. There can be multiple factors producing this condition which are included in day to day life and some times it is really difficult to find one exact cause.
For the betterment kindly follow the suggestions below:
-Apply over the counter calamine lotion 3-4 times a day.
-You can do cold water compresses to reduce the intensity of itching.
-Do not scratch or rub the skin as it can lead to further aggravation.
-The best measure is to take oral anti histamine like loratadine or levocetrizine under medial advise.
- Despite above measures if the problem is not getting better then it is better to consult a dermatologist for best guidance.
Hope these information will help.
"With good health wishes"

Dr Sanjay Kumar Kanodia
MD (Dermatology & STDs)
Answered: Fri, 26 Jul 2013
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