Hello, As the pain is like throbbing in nature which is not allowing the knee to be any better I will advise to first take a hot water fermentation. Use the hot water bag wrapped in towel. This will provide deep heating effect. Continue this along with the medicines you are taking. And also keep the pillow underneath the knee. If you aren t diabetic than please use icing for the lower back region. This will provide the anaesthetic effect and reduce the sensory functions by which the pain will come down. As pain travels by the nerve, rather using a steroid shot it s better to use icing which is non invasive and no side effects. Wait and see if the knee is any better. If diabetic you can use hot water bag in the lower back which will slow down the sensory system by dilation effect. Once the pain comes down kindly try doing knee bending and extending. If that is possible you can possibly do some exercises like static Quadriceps and static hamstring to regain muscle strength. Kindly do on both sides the exercises so the strength is equivalent. In case you are able to perform extension and flexion of the knee, I think it s a ligament injury and we ended to take up the MRI to rule out this. Rehabilitation of ligament injury will be followed with Physiotherapist. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist