Hello, knee pain following accidental kick can occur due to many reasons like dislocation, fracture, sprain and ligament tear. Your symptoms more indicating towards either patellar dislocation/ anterior cruciate ligament injury/ meniscal tear. To know the exact cause you should consult an Orthopaedician who will examine the part through different movement and will ask for some investigations like X ray, USG, and MRI of affected knee. You should take rest, protect knee from further injury, avoid exercise, massage and alcohol. you can take tab. paracetamol for pain relief / tab. Ibuprofen for pain and inflammation relief. Take care, bye.