Green Eggs and Hamstrings

[Sweder]

Anyone care to share wisdom on hamstring injuries (ie best treatment, other than rest of course)? I had a minor incident this morning where as I ran I felt a tightening in the back of my right leg just (about 4") above the back of the knee. It felt like a small marble lodged in the muscle (I checked, there was no marble).

The leg is still slighly sore. I managed to stretch gently after the run, and it didn't get any worse, but it's still there. I'm sure I should treat it in some way (Rest, Ice, Compression Elevation?) but it would be good to hear from anyone with experience of this type of injury. If it persists I will seek advice from a physio.