YOU SAID:

I need to have a doctor's appointment for the hairs on my face.

INTO JAPANESE

私は私の顔の毛のために医者の予約を持っている必要があります。

BACK INTO ENGLISH

I must have a doctor's appointment for my facial hair.

INTO JAPANESE

私は私の顔の毛のための医者の予約を持っている必要があります。

BACK INTO ENGLISH

I must have a doctor's appointment for my facial hair.