<s>[INST] I am training for my first marathon, and have been a runner for 10+ years now. I have started to get knee pain and sometimes a dull throbbing in my left knee. I find it starts hurting around mile 8-10, and then sometimes after doing other cardio. I do strength train as well. Would like to know if there is anything i can use to put over my knee such as bands or something to help alleviate the pain. [/INST] I understand your complaint. The mentioned symptoms mostly due to muscle, ligaments or tendons spasm. This is usually in athletes and during heavy exercise. Applying band around the knee is useful. Take non-steroidal anti-inflammatory Chat Doctor.  Applying creams for muscle spasm and analgesic on affected site twice daily for also 10 days. Take rest for one week and decrease exercise in this period. </s>