Does salt water for oral thrush work?

I'm 99% sure I have oral thrush but I can't get to a doctor anytime soon. I was reading and they say it should go away on its own, otherwise eating yoghurt, gargling with salt water or even apple cider vinegar helps. I ate a bowl of yoghurt like I always do anyway and don't have apple cider vinegar in the house.

Reason why I think I have it is because I have been feeling a burning sensation in my mouth the last couple of days, my throat feels swollen today and when I thought to check my tongue, right at the back it looks a bit white and swollen. I won't gross anyone out with pictures.