The word 'pustule' is correct and usable in written English.
You can use it to refer to any small, raised area on the skin that's filled either with pus or fluid. For example, "I noticed a few pustules on my arm this morning."
Resistant varieties of crop plants have been developed to reduce losses from wilts of alfalfa, corn, and tobacco; angular leaf spot of cotton and tobacco; and bacterial pustule of soybeans, among others.
Anthrax, also called malignant pustule or woolsorters' disease, acute, infectious, febrile disease of animals and humans caused by Bacillus anthracis, a bacterium that under certain conditions forms highly resistant spores capable of persisting and retaining their virulence for many years.
Impetigo, inflammatory skin infection that begins as a superficial blister or pustule that then ruptures and gives rise to a weeping spot on which the fluid dries to form a distinct honey-coloured crust.
It usually results from handling infected material, lesions occurring mostly on the hands, arms, or neck as a small pimple that develops rapidly into a large vesicle with a black necrotic centre (the malignant pustule).
But it seemed to me a great shame that he had a pustule on his shin.
The physician Edward Jenner tested this connection by transferring fluid from a milkmaid's pustule to the skin of a young boy, who then developed immunity to smallpox.
All the victims stagger about, reaching up with their pustule-covered hands, crying for mercy.
The Menu: "O'Connell's is an Irish pool house run by Arabs with no pool tables … there are reasons why the pustule-covered Mickey will cook you chips, egg and beans, or egg, chips and beans, or beans, chips, eggs and mushrooms but not, under any circumstances, chips, beans, eggs and bacon".
Lamb was Genesis's boldest album yet, and the resulting tour their most ambitious, an audio-visual extravaganza that saw Gabriel dressed as grotesque pustule-covered monsters and seemingly materialising on both sides of the stage at once.
Meanwhile, a rose-tinted tsonga diviner's gourd (above) gets its power not only from its fierce finial head, but also from the gourd's protruding pustule-like bumps.
Some have gills instead of lungs, or claws instead of nails and some "don't have any Consequences only pustules coming out of their eyes in old age, or a beard growing from private parts, or nostrils popping up on their knees".
