blister
(BLIH-ster)
A fluid-filled
sac in the outer layer of skin. It can be caused by
rubbing, heat, or diseases of the skin. Also called skin vesicle.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.