your case is ideal case of root canal failure , due to  many reasons related to wrong techniques used kindly visit endodontist MDS, specialist for root canals for further treatment. if in pune visit bridgewaydental.com

Generally most of the pain disappears after the first sitting of the root canal treatment. In your case, without x-rays no firm opinion can be given. 

Upload x ray,without x ray can't say anything about your problems.

Hi, kindly upload your xray for appropriate treatment plan and advice , then only i can tell you want to have to do. For detail discussion contact on personal chat box.

Success of root canal can be better judged if x rays are available. Kindly upload x rays if possible.

Hi can't say for sure anything without seeing your X-ray, if possible post the x-ray image here.

Yes we have treatment for your problem, better you come to us so we can take an x ray for lower anteriors and check whether infection still persisting inside or else is there any problem with upper teeth. Better you dont neglect this, we have to take treatment as soon as possible. If infection persists it can effect other tooth also as you r very young age better dont ignore