アクが出なくなったら清潔な瓶にシロップを戻し冷蔵庫で保存します。

When the scum stops appearing pour the syrup back into a clean bottle and keep it in the fridge.

咳止めシロップ。本番前に一口飲まないと落ち着かない！

Cough syrup. If I don't drink a mouthful before going on stage I can't settle down!