blister

noun

(pathology) an elevation of the skin filled with serous fluid

bulla
(botany) a swelling on a plant similar to that on the skin
a flaw on a surface resulting when an applied substance does not adhere, as an air bubble in a coat of paint
“Because I didn't prepare the surface properly, there are blisters in my new wallpaper.”

verb

to get blistered
“My feet blistered during the long hike.”
to cause blisters to form on
“The tight shoes and perspiration blistered my feet.”
to subject to harsh criticism
“The Senator blistered the administration in a speech on Friday.”
whip