You can watch The Apothecary Diaries Season 2 on several platforms:

• Crunchyroll offers streaming of The Apothecary Diaries Season 2 with English subtitles and English dub, including the latest episodes. It requires a premium subscription for ad-free and offline viewing

• Gogoanime provides free streaming of The Apothecary Diaries Season 2 English subbed episodes online, with options to download episodes as well

• Amazon Prime Video allows you to watch and buy The Apothecary Diaries Season 2 episodes, including a 7-day free trial for Prime Video. Episodes can be purchased for download

• Apple TV also offers the option to buy and download episodes of The Apothecary Diaries Season 2

For the best official experience, Crunchyroll and Amazon Prime Video are recommended. Gogoanime is an alternative for free streaming but is unofficial.