hi welcome to health care magic my name is Dr Ehsan Ullah h well I have gone through your query in such cases when you have knee injury then there some structure in the the knee which get hurt these may be either bone ligaments or their associated muscles mostly bones and ligaments get hurt ... if you have Pain with difficulty in walking or knee movements then you need evaluation by the physician and need a Knee radiograph to check for Bony injury ... after that the physician will advice you treatment accordingly in case you don t have disability like difficulty in walking or movements and there is just pain ... then in such case ... pain relieving drugs are enough. hope this answer gives you guidance regarding you illness management , in case of any further explanation, just let me know regards