Just let the enemy soldiers, knights and perfumers deal with it. Either the dragon kills all the adds, or the adds kill the dragon. I don’t know why so many people summon for it when there are still like 50 dudes down there. I just sit at the top of the hill and watch; even as a phantom.
If you can reposition the dragon between you and the squads chasing you (torrent can help) you can redirect their aggro if you haven’t damaged them yet.