Question about knee braces?

i hyper extended my knee two days ago. i went to the chiropractor and he adjusted the bones because they were wayyyy out of place. so know my knees feel a little bit better, but the muscle hurts alot when i bend it. he said i tore some ligaments and gave me some exercises to do. my dad gave me a knee brace to wear and i was jw if a knee brace helps with hyper-extension pain. it doesnt hurt that much when i walk normally but when i move it too quickly and when i bend it it hurts. should i wear the knee brace even when im just walking even tho it doesnt hurt that much, or is there no point?