I've had a bad taste in my mouth for three days now. It's almost soapy, or medicinal. And my throat is a little scratchy in the same area. It's like in the very back of my throat. I've never experienced a bad taste last longer than a few hours. I don't think I have any dental health issues - I floss daily and brush my teeth 2-3 times a day, and don't have any bleeding or redness in my gums. Any idea what would cause this taste? And how to get it to go away? I did just get through a bout of tonsillitis. My family says either sinus drainage or acid reflux but I've never had this problem before and of course Google says much, much worse (including possibly a stroke?!?!?).