DON'T stretch. If there's any damage stretching will make it worse (potentially pulling damaged fibres apart/ or overstretching ones that have already been overstretched).DO use ice. While swelling may not be noticeable, particuarly if the damage is deeper, there is every chance there is some inflamation. Ice will recude this and help improve blood flow into the damaged area. I prefer ice baths - they're harsh but at least you're soaking the whole leg, not just an isolated spot.DO use compression gear. No need for expensive Skins etc. Just get some tubigrip bandages from Boots/ local chemist. Might not be as scientific, or give graduated pressure, but IMHO they work just as well. I pulled my hamstring 3 days before a standard tri, and by using ice baths a couple of times a day, and wearing compression stuff (tubigrip) I was fit to race (and got a PB).