We don't have synonyms for flare ups yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are flare up, flare-up and flame up.
(v) :
(intransitive) To become more intense suddenly.
(v) :
(intransitive, sometimes with “out” instead of “up”) To burst out suddenly, as in anger.
(v) :
(intransitive) To burn brightly again.
(n) :
Alternative form of flare-up. [A sudden outbreak, outburst or eruption (originally of flame, but now used more generally of any violent activity or emotion).]
(v) :
(intransitive) To become more intense suddenly.
(v) :
(intransitive, sometimes with “out” instead of “up”) To burst out suddenly, as in anger.
(v) :
(intransitive) To burn brightly again.
(n) :
Alternative form of flare-up. [A sudden outbreak, outburst or eruption (originally of flame, but now used more generally of any violent activity or emotion).]