Frozen shoulder is treated with nonsteroidal anti-inflammatory drugs without the application of antibiotic therapy. NSAIDs include aspirin, acetaminophen, indomethacin, naproxen, naproxen, diclofenac sodium, ibuprofen, celecoxib, and others. These drugs have anti-inflammatory, analgesic, antipyretic, antirheumatic, anticoagulant effects, the main adverse effects of these drugs have gastrointestinal adverse reactions, can appear epigastric discomfort, hidden pain, nausea, vomiting, fullness, belching, loss of appetite and other symptoms. Therefore, it is best to take this type of drug after meals, or choose enteric-coated tablets to reduce gastrointestinal adverse reactions. There are also adverse reactions with hepatic adverse reactions, and mild liver damage can occur with prolonged use.