How do I get my mum to stop using that perfume?

I'm 13 and live with my mum and she has this perfume that she uses every day. But I can't stand the smell of it. It lingers in the air and makes me gag. I end up having to close my bedroom door and whenever I'm around her have to try not to breath through my nose which is hard because I have ear problems and have to sniff deeply to get my ear pressure back to normal about 5 times a minute and every time I swallow. It might sound like I'm making a big deal out of it, But I seriously cannot stand it. I've told her numerous times to stop using it but she just won't listen. How do I make her realise that it really gets in my throat and it's not nice?!