Hello, Bumps can from an infection. Location, texture, color, hard or soft are all factors that help diagnose the source. Hard bumps can be excess bone covered by tissue called tori that is not an infection. An infected tooth or periodontal abscess can drain and a pocket of infection can cause a soft bump. Sinus infection can drain into the mouth as well. Trauma can cause an inflammatory reaction. A growth, cyste or tumor is possible. Continue to monitor the area and note changes in appearance. Reporting symptoms of a long term chronic infection means your source is untreated and you need to confirm a diagnosis for treatment. Dental infections can change and localize with swelling. I suggest that you schedule a dental exam to determine if you have a dental infection. Are you up to date on routine exams or do you have any broken teeth? Sometimes sinus and upper dental infections can be difficult to diagnose producing symptoms that could be either or a combined source. Your dentist will refer you to your physician if no dental source is determined. Rinse with warm salt water and take some Antiinflammitory medication. This may help control inflammation and cleanse the area until you schedule your visit. Thank you for your inquiry.