Chronic nephritis can be treated with physical therapy or medication. 1. Physical therapy: chronic nephritis swollen gums can be relieved by local cold compresses, cold compresses can shrink blood vessels, reduce local congestion, low temperature can also reduce the sensitivity of nerve endings, relieve pain; cold compresses can also be used with saline gargling, for the gums swollen and painful triggered by bacteria, saline can be used to assist in sterilizing, anti-inflammatory effect. 2. medication: swollen gums usually need to choose oral anti-inflammatory drugs, such as metronidazole capsules, amoxicillin capsules. Metronidazole has the role of anaerobic bacteria, can treat oral anaerobic bacteria infection caused by swollen gums. Amoxicillin capsule can penetrate the bacterial cell wall for sterilization, can treat bacterial infection caused by swollen gums. All of the above medications should be used under the guidance of a doctor, avoid self-medication. If patients with chronic nephritis have swollen and painful gums, it is recommended that they go to a regular hospital in time and receive standardized treatment under the guidance of a doctor.