Doubtful: Think of hives as an allergic reaction (http://www.mayoclinic.org/diseases-conditions/hives-and-angioedema/basics/definition/con-20014815). Benadryl (diphenhydramine) is a good 1st attempt but it's doubtful that drinking lots of water will have any major direct impact. Do some detective work to determine what new thing, food, lotion, soap, detergent, environment you've been exposed to. Then avoid
Answered 10/18/2017
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