熱が冷める
Fever abates.
to allay the fever―bring down the fever
The fever has abated.
熱が下がること
The fever rises.
to lower the temperature―(熱病の熱なら)―allay the fever―bring down the fever
Fever rises.
to allay the fever―bring down the fever
熱が退いた
The fever has abated.
Fever abates.