気分がよくなる

feel better

→ 気分
phrase Uncommon #14,858
feel better Literally, “one’s mood becomes good.” Often used when someone feels physically or emotionally better, such as after taking medicine, sleeping, or resting.
JA: 少し休めば、気分がよくなるよ。
EN: You'll feel better if you get some rest.

毎晩十分な睡眠とればあなたはずっと気分がよくなるだろう

If you get enough sleep every night, you'll feel much better.

これで気分がよくなる

This will make me feel better.

この薬を飲めば気分がよくなるはず

You should feel better if you take this medicine.

もう真実を知ったのだから多分気分がよくなるでしょう

Now that you know the truth, you’ll probably feel better.

少しは気分がよくなる

Will you feel any better?

— ダーク・プレイス (2015)