Final answer:
Stress fractures, such as hairline fractures, can be treated with immobilization, physical therapy, and over-the-counter pain medication.
Step-by-step explanation:
Stress fractures, including hairline fractures, can be treated through a variety of methods depending on the severity of the injury. One common treatment option is immobilization and non-weight bearing, which involves using a cast or brace to restrict movement and allow the bone to heal. Physical therapy can also be beneficial in the recovery process by strengthening the muscles around the fracture site and improving range of motion. In some cases, over-the-counter pain medication may be used to manage pain and discomfort.