Respected madam, thanks for asking question, I have understood your concern about pain and swelling in knee joint, see first we need diagnose cause of pain and swelling, as you have given a history of trauma and lesions in knee joint so we need to confirm that which part is affected some time only ligaments, muscle or bony avulsion fracture, we are not aware of it. so first by taking x-ray and MRI we can confirm about structure affected, then if it s cruciate ligament damage or bony avulsion fracture then we need go for minimal invasive surgery. if it s grade 1 injury then it Can treated easily with rehabilitation, in which there is important role of physiotherapist to provide healing. if this is the case then for 15 days ultrasound therapy and IFT modalities for twice daily need to take. it may take 2 months to recover fully. I hope you have satisfied with the answer. Feel free to ask again. provide feedback as per your convenience.