Peru? No plans to hike in Peru...yet.
Hey, try something....eliminate the thick hiking socks and and run two pairs of the super thin ones. I used to do the thin/thick thing myself and learned that sweat was the main culprit for me. Sweat, plus tired/swollen feet made for a bad combination.
That all ended when I:
1) bought a half size bigger shoe than what felt right in the store.
2) went to doubled thin socks (yes, thin nylon dress socks)
3) Body Glide....wonderful stuff, feet happy when everyone else is pulling out the tape and complaining. It's not messy or greasy as you might suspect.
4) stopped hiking in boots....most of us don't wear boots daily. Expecting them to be comfortable during the occasional hiking trip is unrealistic. I wear boots for trail maintenance, bushwhacking, yard work, but get out of the dang things as soon as I'm done. Trail runners work for me but there are some very nice walking shoes out there. I wear New Balance walking shoes pretty much every day....it's a non issue to go hiking in them....just go!