If it is hyperplasia, then massage, there is no better way. The dog will hurt when massaging, so the technique must be light. The massage method is to rub clockwise and counterclockwise. If the dog can accept it, rub it back and forth with your fingers. Rub it for no less than 15 minutes, just one hour at a time. At least once a day. Press until you can't feel the lump. Rub it for two or three weeks, and my dog will be fine in two weeks If there is inflammation, add some anti-inflammatory drugs and add amoxicillin to the child.