Roommate is making my room stink?

Ask your parents to discuss hygiene with her. This is a subject that you can't be "nice" about, but you may need to be direct in telling her that she needs to wash every day because she doesn't smell clean. And tell your mom about a stronger deodorant too.

ask your parents to talk to her.

Tell your mom to address her about it

Tell your parents

Buy her a gift basket of bath stuff; bombs, scented shower gel, etc. You could slip a deodorant into this too and present it as a "housewarming" gift.

i hate to break it to you the way you asked the question would be embarassing to that person if they was to see it.

go tallk to her or him or your parents upon this question. not to be rude. the advice is go speak do not be afraid of talking to your "roommate"

Better for you to tell her as a friend looking out for her than for her to hear it from mean kids at school.

It "could" be that her clothes need washing. If you have a modern washer, run the clean cycle before you do a full load of her stuff (don't stuff the washer) and after (also, run an extra rinse cycle which will help). Maybe treat her to a new/clean pouf for showering, and a new deodorant/antiperspirant (if she has older stuff this could be an issue; poufs can be washed in your washer) and suggest that she start showering daily (it'll be good for her sense of self among other things).

If she's a foster child, you can bet that she has come from a terrible environment. They may not have even had running water, much less deodorant. She may not have EVER used any, and doesn't even know anything about good grooming. Why don't you take her shopping this coming weekend (with some of the money your mom gets for fostering her, as it's honestly being spent on the girl), and the both of you buy some shampoo, fragrant bath soaps and some antibacterial soaps, and buy a deodorant stick for each of you. That way, it's subtle, and you won't embarrass her. She probably doesn't know anything about grooming. Offer to help her fix her hair, and you might also take her to a beauty salon to get a haircut. Trust me (as a former foster child), if you're gentle about it, she will be very grateful and will consider you a real friend. I'm sure she can't smell herself, because the environment she was in would probably knock you backwards with filth and she doesn't realize that she smells strange. Good luck with this. I trust you will do the right thing.

talk to your parents and let them handle it