What can i do about an achilles tendon injury from running?

Rest: This can be very serious and a precursor to rupturing the tendon. You should rest, ice and take time off. If there is any swelling or bruising, or inability to walk, you need to see a dr.

Achilles tendon pain: Achilles' tendon pain is very frustrating to resolve. Start with rest, stretching, ice, and otc anti inflammatories. If this isn't doing the trick, do yourself a favor and visit a podiatrist. We have modalities at our disposal that will make a big difference.