Hi doctor i had lubriation injections in both kneecaps yesterday, Tuesday and I am very sore today. i am just wondering how long the pain from the injections will last. I can do very little today. i also wondered how long it would be before I would see some benefit - the doctor said I should start to feel the benefits within a few days but your site seems to suggest it could take longer. i would be very grateful if you could give me some insight. Thanking you.