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White bumps all over hand after taking shower, getting wet. What they might be?

My husband takes a shower and immediately after he has been in there for at least 4 minutes he starts to get little white bumps all over his hand. We moved to Arizona from Cincinnati in 2007 and this started happening a couple months after that. This only happens when his hand gets wet, be it sweat, washing the dishes, or swimming. Can you please advise what they might be?
Asked On : Thu, 11 Apr 2013
Answers:  1 Views:  962
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Diseases and Conditions
Dermatologist 's  Response
Seems like your husband has developed aquagenic urticaria, also known as 'water allergy', 'water urticaria' and aquagenous urticaria which is a rarely diagnosed form of physical urticaria.
Aquagenic urticaria usually causes the skin to itch and burn after being exposed to water of any kind.The skin may develop hives. Showers may result in severely dry eyes and soreness. Higher water temperatures tend to expedite the formation of hives.
Contact with any form of water can cause symptoms to appear. One's own or someone else’s sweat can cause a reaction, so most affected people try to stay cool in summer to avoid sweating as much as possible. Tears on one's face from crying can also cause pain.
here is no known treatment for aquagenic urticaria.
Dermatologists recommend avoiding contact with water as much as possible by taking short showers, staying cool, and avoiding rain to ease symptoms. Antihistamines and other types of medications may be prescribed to help reduce the intensity of the reaction. In some very mild cases a medicine such as benadryl can be taken to relieve the hives.

Hope it helps
Dr Geetika Paul
Answered: Fri, 12 Apr 2013
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