Many possibilities: The more common causes for blisters on the feet include: fungal infection, (dyshidrotic ) eczema and contact or allergic dermatitis. The smell may or may not be associated with any of these but usually related to bacterial overgrowth. See your dermatologist to find out which of these it might be and to make sure it is not some other less common cause.
Answered 5/18/2016
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