How does the Medic heal?
The Medic can heal any organic ground unit. This includes Protoss and Zerg units, but does not include buildings, air units or partially organic units like Dragoons. A single medic cannot heal herself, but a group of medics could heal each other. The healing ability of the Medic is automatically triggered when biological units except allies in her range are injured. You can also select to heal individual units in the same fashion that an SCV can be directed to repair machines and buildings.
