"약으로 치료합니다."

Translation: We cure with medicine.

[mcriss8]

"treat with medicine." 치료하다 is to treat/cure. Although treat and cure mean different things..lol. And honestly, you cannot cure with medicine.

[Shlomo_]

The suggested answer, when you get it wrong, is "It cure with medicine." That is not a sentence.

[tomsigurd]

I got "He cure with medicine" which is also grammatically incorrect