How to Say "When I'm sick, I have to take medicine." in Korean?

"When I'm sick, I have to take medicine." in Korean is 아플 때 약 먹어야 돼요. (apeul ttae yak meogeoya dwaeyo)

추워요. (chuwoyo) - It's cold.
추울 때 (chuul ttae) - When it's cold
추울 때 뭐 해요? (chuul ttae mwo haeyo) - What do you do when it's cold?
추울 때 집에 있어요. (chuul ttae jibe isseoyo) - When it's cold, I stay home.
추울 때 집에서 책 읽어요. (chuul ttae jibeseo chaek ilgeoyo) - When it's cold, I read a book at home.
따뜻해요. (ttatteuthaeyo) - It's warm.
따뜻한 커피 (ttatteuthan keopi) - Warm Coffee
따뜻한 우유 (ttatteuthan uyu) - Warm Milk