I dont get it, it says do not swallow as it becomes toxic but then it says (a) Do not swallow. The oil should be spat out. But inadvertently if you swallow there is nothing to worry. It will go out through faeces. Nothing is to be done.
I would think swishing that in your mouth for 20 mins would get into your blood system thru your gums just like all that tooth whitening/bleach products people were getting sick over from using.
It says use a tbsp. thats not alot to swish arnound in your mouth tho it would prob build up with saliva which would prob make it even more harder trying not to swallow. I wouldnt mind trying it but I dont want to get violently ill because I end up swallowing it.