OOC:
Yeah, Nekurr's Triumphs were for the vision—they didn't reveal the source of the affliction but some crucial context around what that source is and how it got there. (Remember that Hildar and Tronus don't really know what you saw, as it was in a private note.)
I think a Divine Heal would be welcomed; call it Heal + Restoration for an Average check (PP). (Boost for Component Casting). That might stabilize him for a day (so that his illness doesn't progress); extend that by 1 day for every 2 advantage, extend by a week for each Triumph? No pain relief though; if you want to stabilize + relieve pain, change the check to Hard (PPP), which will also reduce the chances you can extend the effects beyond a day.
If you choose not to do the pain relief, Hildar can always whip up some painkillers in the kitchen. Yes, a SP for the supplies sounds reasonable. Rules say four hours per dose (unless you get some advantages to spend), but why don't we hand-wave that and fold the alchemy concocting into the conversation with this man and his wife? Average check (PP), two setbacks for no alchemy kit.