If you do not understand why Eli did not look for medical supplies or lab...
I suggest you rewatch SG1 SGA and all of SGU again then report and let us know how it went.
The Goauld had the power to revive, why didn't sg1 just go and steal a few of those suckers to heal up every time they got hurt. Right.... bad TV.
The wraith healed through evolved life giving powers not tech.
The Ori revived using the power of the ascended, or knowledge learned from ascension.
The goauld are the only baddies to use tech to heal (other then the tel-chek device, which BTW IS ANCIENT).
When you rewatch, notice how after like the 4th or 5th season, they no longer or rarely use dumb ass healing **** that made the episodes pointless.
POW POW your all dead.
Nope haha just kidding