Hi, I'm Maureen, and I'm in a lot of pain. I had at least 20 teeth extracted from my mouth 4 days ago, leaving me with no more in my mouth. The dentist put in a immediate upper and lower. There's one spot between the gum and lip area that is paining me, and none of the pain meds that I have been taking will ease the pain. What I would like to know is, How long does the immediate have to remain in your mouth? I feel that if I can remove them, I can get rid of the pain that I'm in. Please rescue me from this pain that I am having