YOU SAID:

i have a tampon up my nose

INTO JAPANESE

私は私の鼻にタンポンがあります。

BACK INTO ENGLISH

I have a tampon in my nose.

INTO JAPANESE

私の鼻にタンポンがあります。

BACK INTO ENGLISH

My nose tampons.

INTO JAPANESE

私の鼻タンポン。

BACK INTO ENGLISH

My nose tampons.