Infection in gums might be due to various causes like gingivitis or periodontitis or due to decayed teeth there is food lodgement between two teeth which could lead to pockets and severe pain in gums also due to periodontal disease there could be loosening or drifting of teeth so visit your dentist who would probably take an x Ray and tell you the best solution

Hello..If tooth is not mobile(loose) we can try to save the tooth by scaling(cleaning) and few xrays are to be taken to place bone graft and stabilise the tooth.

Hello sir. U dont have to directly go for a tooth removal unless n untill there is no bone support. We do something called gum graft n bone grafting procedures to improve ur gum health. For this doc will suggest a few x ray after which procedure will be started.thank u. Take care