Human: What medical treatments are available for arthritis? Assistant: 
The main treatments for arthritis are medications, physiotherapy and lifestyle changes. Medications can include non-steroidal anti-inflammatory drugs (NSAIDs), disease-modifying anti-rheumatic drugs (DMARDs), corticosteroids and biologic response modifiers. Physiotherapy involves targeted exercises that strengthen the affected joint and improve its range of motion. Lifestyle changes that may help include maintaining a healthy weight, eating a balanced diet and avoiding activities that aggravate arthritis.