<P> A blister may form when the skin has been damaged by friction or rubbing , heat , cold or chemical exposure . Fluid collects between the epidermis -- the upper layer of the skin -- and the layers below . This fluid cushions the tissue underneath , protecting it from further damage and allowing it to heal . </P>
<P> A blister may form when the skin has been damaged by friction or rubbing , heat , cold or chemical exposure . Fluid collects between the epidermis -- the upper layer of the skin -- and the layers below . This fluid cushions the tissue underneath , protecting it from further damage and allowing it to heal . </P>
where does the fluid from a blister come from
where does the fluid from a blister come from
between the epidermis -- the upper layer of the skin -- and the layers below
between the epidermis -- the upper layer of the skin -- and the layers below