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It need not be a skin disease itself but looks more like ly to be a viral fever with rash
.fluid filled blisters
can also be seen in chicken pox, herpes, or pemphigus.But if the scaling of skin is generalised or there are large blisters (bullae) , then it's best to visit your dermatologist
early for appropriate treatment.If he has no other problem except mild scaling then it may resolve on it's own.keep him well hydrated and well fed.