They say my daughter has a sprained ac joint it has been 3 weeks and it still hurts she said it doesn't feel any better .is this normal?

Sprains: Mild sprains can take a week to heal, but more severe ones can take up to 6 weeks to heal depending on the location amount of use. Rest from sports, anti-inflammatory medications such as ibuprofen and heat pads can help. Severe injuries may need PT. If she has not seen one already, your daughter should probably see a pediatric orthopedist to be sure there is not a more serious problem.

Clavicle physeal fx?: The distal (end) of the clavicle does not ossify until about age 21. For this reason, the cartilage end is currently not visible on routine X-rays. If pain is NOT improving by now, a repeat thorough examination is warranted by a musculoskeletal specialist (orthopaedic surgeon) to assess for a physeal separation between the cartilage and bone end. This injury occurs at the growth plate.