pock

nouns

a pustule in an eruptive disease
pock
is a part of
a highly contagious viral disease characterized by fever and weakness and skin eruption with pustules that form scabs that slough off leaving scars
smallpox, variola, variola major
is a type of (narrower)
a small inflamed elevation of skin containing pus; a blister filled with pus
pustule

verbs

mark with a scar
"The skin disease scarred his face permanently"
mark, pit, pock, scar