There are three muscles in the human legs. The hamstrings are three muscles which are located at the back of the thigh that affect knee and hip movement. They start under the gluteus maximus behind the hip bone and then attach to the tibia bone at the knee. These are biceps femoris which is the long muscle in the body that flexes the knee.
A, over the counter. Recreational would be just for fun, herbal preparation doesn't make sense in this scenario, and aspirin does not need to be prescribed.
