Translation of "Ointment" in Japanese

It's a good paying job, but the fly in the ointment is that I'll have to spend a lot of time traveling.

その仕事はいい金になるんだが、一つ気に入らないのが旅行にかなり時間を取られることだ。

- That place's food is great, and their prices are good, but the fly in the ointment is their terrible location.
- That place's food is delicious and their prices are low. However, their location isn't good.

あそこの食べ物はうまいし値段も安いが、地の利が悪いのが難点だね。