I was prescribed Levaquin for 7 days after being on 6 days of Keflex which failed to get rid of an irritated infection in the top of my inner ear. I just stopped the Levaquin 24 hours ago and I want to know how long the back of my right leg and knee will be in stiff pain? I have tried using pain medication, ice, elevating my leg and rest to help me deal with the pain. Since reading about the dangers of tearing a tendon are a significant side effect of Levaquin, I would like to return to try exercising (at least using an elliptical machine) however I am still worried about the side effects of the Levaquin. How long must I wait until I am able to exercise and stretch after that last dose of Levaquin?