root canal

Has anyone of you expererienced this procedure? Ulk! It's really jading! Well i'm not sure with other clinics but for my case I had my dentist appointment every now and then. Just for one tooth, it took me 7 appointments before it's finally done. Ooops not yet, i still have to come back on July 15 for the permanent pasta. First, i went there last month to cut the nerve for that tooth, (sorry, i can't explain in a more medical way) then come back for the dressing. Come back again for checking if the nerve has dried already. It's like cleaning-temporary pasta-dressing- process again and again. I really don't mind but my problem is that everytime i feel that the dentist's hand or tool touched the inside of my mouth, i gag immediately. It's what makes it difficult cause the dentist has to stop whatever he is doing in my teeth everytime. I'm getting tired already. I hope it will be over by next month. Haayy.