I had olecranon fracture, which was treated by kwire fixation, my cast was removed mid March after 25 days of surgery. I have been undergoing physiotheraphy since then, during the session extension is 90% and flexion is 60%. Doing 100% extension causes a lot of pain which is unbearable and same is the case for flexion. Can I use wax therapy before session (kwire fixation is there) ?