Past 4 Days, I'm feeling a pain on my left ankle. Slight swelling present and even at rest pain is present The pain feels like a firecracker bursting and radiating the pain towards the toes and then my left knee ( has h/o grade 2 meniscus tear and acl sprain - recovery 95% ) The pain gradually had increased At rest or on any slightest touch at site or any pressure on leg - there's a throbbing pain which lasts full day.... Doesn't stop until slept On hot compression, there's a tentative relief but no over the counter med has relieved the pain What may be the cause ? Pic attached showing pain site