Welcome at HCM I have gone through your query and being your physician I completely understand your health concerns... What is your age? What is the mechanism of injury ? Is it twisting injury ? Is there any swelling around the knee? Do u have fever? In my opinion you should take rest and immobilize your knee.. You should avoid bending of knee and avoid putting weight on it. Do regular icing and use acetaminophen to relieve pain... Along with this you should meet an orthopedic surgeon .you need to get an x ray of your knee along with MRI to rule out soft tissue injury..so that appropriate management can be initiated in time. Get well soon Regards Dr saad sultan