flare up

verb

To burn brightly again.
“The fire flared up after we added more wood to it.”
To become more intense suddenly.
“Reports indicate that tensions have flared up in the Middle East again.”
“The pain in my shoulder flares up when I turn my head.”
To burst out suddenly, as in anger.
“The insult made him flare up.”
““Well,” I says, “I cal'late a body could get used to Tophet if he stayed there long enough.” ¶ She flared up; the least mite of a slam at Doctor Wool was enough to set her going.”