Seriously?! What is the deal with kids - TEENS - not performing basic hygiene these days?! When I was a teen I wouldn't be caught outside the house without showering [and she is on her period even?!]. Gross at the stench as she walks by, I can only imagine! 

Just ridicule her and make fun of her disgusting stench.

My sd17 (who thankfully lives 4 hours away) just had her older sister shave part of her head bc her hair was so knotted up from not brushing/showering. This is blamed on depression. None of my 3 sd's brush their teeth, either. Teens go through a normal phase of this, but it is short and not this severe. My sd's all have rotted teeth from refusing to go to the dentist and refusing to brush *even as adults*. 

If she won't shower she will stink. Nothing will be worse for her than being laughed at by her peers in school for being stinky.(well maybe some things can be worse lol)

If you fear she will blame you to the school take pictures of the chart and other things you have done to ensure she washes. 

Maybe try to make the bathroom into a spa for a day with you and her pampering yourselves.( I know it probably is the furthest thing from what you would want...but it's an idea.)

Lol... My ss12 will ask to take baths.. Yup. . baths

But he would go to the bathroom right before and NOT USE TOILET PAPER. So gross, how does one get clean marinating in poo water? He would then come and dig in food with his fingers.....

So, I guess at least she is keeping her nastiness to herself?

Eww, my sd is like that too, except she only changes her underwear when she showers,  so if she goes a week without bathing, it will be a week before she changes her underwear. 

I just refuse to tell her anymore. If she comes around me, i just leave. If she wants to come with me somewhere, i just tell her, no, you smell too bad. 

I really have no pearls of wisdom, just wanted to tell you I know how it feels (not to the same level, mind you). SS14 is gross. He will go and play baseball and then not shower. We live in Florida, FFS. His mother lets him shower in the morning ‘since he’s so tired after his game.’ He also doesn’t brush his teeth if he’s not at our house. I used to remind him, but I stopped. His mother can pay for the cavities since she enforces that type of lifestyle. She let him take half a 2 liter of Mountain Dew to bed the other night. His teeth are already discolored and fuzzy looking. I am still kinda embarrassed sometimes socially by him, but it’s getting easier. I work at the middle school he went to (just finished 8th grade and now he’s out, THANK GOD), and when the kids would tell me things about him, I’d just say ‘I’ve done all I can, and showed up to the SS party late.’ 

I have the same issue with my SD who will be 17. She won’t shower and doesn’t want to be wet. There’s been many, many awkward emails, phone calls and meetings at school over how badly she smells. My DH can’t bathe her since she’s old enough now that he’s afraid of being accused of being inappropriate. I’m not going to fight with her over it. Her classmates complain they can’t stand being near her and tease her but that doesn’t make her want to bathe. It’s gotten worse since one boy in her special ed class started picking on her about the stench. Rewards, punishments, nothing has worked.  It’s a sensory thing with her according to her therapists.

My stepdaughter has always been earthy. She rarely showers and in the 13 years I've known her I've never once seen her brush her hair. She ties it on top of her head. At one point she didn't wear socks with her tennis shoes. The stink was unreal. Her mom asked my hubby to try and get through to her. He bought her Dr. Shoel's (sp?) shoe deodorizer. The last time she visited she brought the clothes on her back for 4 days. She took one shower in four days. She made some excuse that bathing daily is bad for you. Washes away all the antibodies. I did not see any luggage nor change of clothes so one pair of underwear the whole time.Yuck. My husband is mortified but says she's a grown adult and there's nothing he can do. She doesn't go to the dentist often and at the last dental visit she had 7 cavities. She was going overseas and told her dad they mostly use bidets rather than toilet paper. He said you're going to have to get used to that. She said I already am. We often run out of toilet paper and forget to buy it so I just spray off with the shower hose. My husband was so grossed out but didn't say a word. When she left I said remind me never to use the shower nor bathroom at her place. So sick!

Im in mainland europe and i dont have a bidet, nor do DH's family. They seem to be mostly in hotels. Yes indeed, toilet paper is most certainly used lol.

My Sd was a filthy one too. Also came up with pathetic excuses not to was. Also the 'showering/soap is bad for you' rubbish.

Of course you all know how our story went in the attempt to get her to clean up. I agree that they should be shamed but for us it lead to accusations of psychological and emotional abuse. Now i would just say 'fine, you carry on but dont come here until it changes'.

OP is in that awful time when the dirty skid still lives at home. Again i notice that counselling didnt work. I would definitely agree that this is a passive aggressive personality disorder and she is controlling the situation.