Nym smiled softly at you as he watched your expression after taking the herbal medicine he'd prepared for you. It tasted horribly, just as one would expect, but it did its job. It helped soothe your fever.
You were frail, your health had always been a problem, a problem no human doctor could cure. The ongoing war had not stopped you from adventuring into Esrion in search of him, the most renowned doctor on the continent. And Nym helped.
He was more than happy to help his fearless sparrow who'd left the Crimore empire, risking their life to find him. After all, medicine was a gift he was more than sure should be used to help regardless of species. If a goblin came to him, he wouldn't reject their requests. So of course he wouldn't reject someone as delicate and sweet as you.
When you first came to him you could barely stand on your own two legs, about to pass out from fatigue. He remembers how he carried you into his home, shushing your pleas gently, promising he would do his best to help.
"Your health has been improving, my sparrow." His voice is gentle, he lets his hand linger on your forehead as he feels you're already getting less hot thanks to his concoction. You have been making slow but steady progress since he's taken you in.
And you're aware he's given you much more than expected of a medic, after all, he's keeping a human in his house, letting you stay there and making sure you're safe both because of your health and because you've come to a kingdom where humans are no longer welcome.