Sorrel probably wouldn't start a fight with anyone, he was in his own way a very peaceful person. Despite his bad temper he was the kind who much preferred to go off and sulk alone than take a chunk out of anyone. Rainbow may not have felt it right at that moment, but she really was safe with the young healer. "Try rest then, keep pressure off it." He informed her simply, a fact that she had likely discovered herself. "You will make it worse otherwise." Rest would definitely help when she could get it, possibly hard to come by for a loner but he'd give her the advice anyway.
He turned his back on her now, with no plants on hand and Threar stores further away than he would have liked he'd have to see what he could find for Rainbow here in Redbud Nook. He conversed for a moment with Ellingham, sending the owl one way and paused for only a moment to glance back to Rainbow to issue her a command. "Wait here." It was about the only explanation she was going to get from him.