to flare up

listen to the pronunciation of to flare up
Englisch - Englisch
To become more intense suddenly
To burn brightly again
If a disease or injury flares up, it suddenly returns or becomes painful again. Students often find that their acne flares up before and during exams. see also flare 2, 3, flare-up
{f} explode; be enthusiastic
ignite quickly and suddenly, especially after having died down; "the fire flared up and died down once again
to flare up
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