My right knee is swelling and it's painful . i can't barely walk or move . i can't bend my knee and can't even straight my leg . last January 23 , we decided to go on check-up . my doctor gave me a pain reliever and anti-swell . but nothing happened . i also went for therapist , it's still the same . after 2 weeks of i went back to my doctor and she suggested me to take some x-ray and go to an ortho doctor . they found nothing and gave me pain reliever and anti biotic . nothing happened as well.