Please help to decide and give inputs. im really confused Espicially for people who have tachycardia, palpitation problem and have experience root canal, or bigger dental procedure. Im really sad i have to go through this again. When im in no better condition even not good instead. im sensitive to chemical, perservatives, additive, even from food i could get an episode. My upper wisdom tooth is rotting and dentist say it needs to be removed but since ive never done it and had heart issue(tachycardia, palpitation really bad) and adrenaline sensitivity, overexcitation. i think its risky. and after it will also need lots of pain killer? So dentist will try root canal. My wisdom tooth is not sideways though the position is kinda hard to reach and i might have to consult more and get an xray too cause it seems it might be difficult for wisdom tooth to get succesful root canal. anyway, for root canal there are 2 options. kill the nerve with drug and wait couple of days untill it dies or inject anesthesia with no epi (maybe) and pull nerves in 1 day (im going have to ask too about anesthesia i dont know what it will be or if its available) but i heard its also not easy to do it without epi and it also hutrs. now if i kill the nerve first the drug contains Arsenic (they said only a little) and some other ingredient which i dont know. if someone know could you give some info. theres also a risk with it. also i was thinking what if on the day i wouldnt be able to go, etc. so it gives me worry but i thought maybe i could tolerate it, if things get bad maybe i could remove it. and ive done it before although i got sick from it. I used to had a root canal years ago. my condition was different from now although im already got ill. they kill the nerve first using arsenic which i think was stronger due to the dentist was old school cause they said should be removed in 3-4 days. Anyway on the second oppointment after it, i got worse for around week i forgot how long exactly. due to my heart, i dont know what caused it. They said they dont use anesthesia but i dont know. Is it due to other drug. Or the arsenic (but arsenic was put on 3 days ago i dont know if they after or not) or the sterilization. point is i dont have a clue but on later weeks after apppointment where they only fill the holes etc i was fine. and permanent filling is ok too. i know some people use anesthesia with no epi but i dont know if it really wont cause any excitability, heart issue. and if it works to kill the pain to the root? etc. and even if its available i also heard the dentist ability to inject also counts. Thanks for whoever replying.