Please help me heal my tooth that needs a root canal

Hi there all,

I heard of this through my dad, his long time friend introduced him to MMS. I need a root canal and know the dangers. I don't want a dead tooth in my mouth and risk all the bad things that come with that.  I am so new to this. I should also mention I am a breastfeeding mom. 
Where can I purchase and what is the protocol? Is bodyweight a factor or anything like that or is it the same for all? I am in Ontario, Canada. 

I have been searching high and low for alternatives to a root canal. My dads friend did save his tooth doing this protocol. I just want as much information as possible. I have also read about St. Johns Wort but I cannot take it while breastfeeding. I have seen conversations on here about many saving their teeth through this which makes me so hopefuly. I am thankful to have found this forum! 

Thank you in advance!