After the diagnosis of knee joint swelling and pain is clear, local medication can be used. For mild symptoms and early stage, local non-steroidal anti-inflammatory drugs, such as application and coating, can be used. For more severe symptoms, oral NSAIDs should be combined with intra-articular injections of sodium glacial acid to control inflammation, which has a restorative effect on articular cartilage and nourishes articular cartilage, and oral glucosamine can be used to repair articular cartilage. There are many ways to treat swollen and painful joints, and reasonable medication and effective functional exercises under the guidance of a doctor are really effective in relieving arthritis and can help patients further recover.