Swollen but not painful gums can be treated locally and systemically to reduce swelling. Swollen gums may be caused by periodontitis, gingivitis and other diseases, need to take appropriate treatment according to the degree of the disease. 1. Swollen gums generally take local treatment will have obvious results, you can use hydrogen peroxide solution to rinse the gum sulcus, and then use iodine preparation for the gingival sulcus, which can be relieved. If the swelling is relatively large, you can make a local incision for drainage, and then use iodine preparation for medication, usually use antibacterial and anti-inflammatory mouthwash gargle. At the same time, periodontal sequence treatment. 2. If there are systemic symptoms of infection or conservative treatment has no obvious effect, this situation can be under the guidance of the doctor oral or intravenous drip antibacterial and anti-inflammatory drug therapy, such as metronidazole, amoxicillin and so on. Gums are swollen but not painful to do further examination to identify the cause of the cause of treatment, if there is pulpitis can be stabilized after root canal treatment.