1) you're done running until it's had a chance to heal
2) make a careful, gradual conversion to minimalist footwear. Start by walk/running for a few weeks and slowly ease into it.
3) do SLOWLY performed heel raises to failure to strengthen the tendon. You should take 5-10 seconds to lift the weight and 5-10 to lower it. Use the most weight you can handle for a set lasting 90-120sec. Do this once every 4-7 days.