The first time Gale talked to me about his condition was about the Idol of Sylvanus in the Grove. I turned him down since I didn't want to piss off the druids.

Now I have the Staff of Crones and Amulet of Selune's Chosen. I thought both would help him. I'm not getting any dialogue options to give them to him. Tried talking to him in camp. Am I supposed to wait until he brings it up again? Haven't tried having him in my party and talking to him while exploring. Or maybe it's a bug?