ひにちぐすり

time heals everything

Example

from doctor and patient/user

いしゃ：もう　だいじょうぶです。あとは　ひにちぐすりですよ。
かんじゃ：ありがとう　ございます。

Doctor: You will be fine. You'll be cured in no time. It'll just take a little while.
Patient: Thank you.