Leave him alone. Don't handle and I also don't feed. It's a stessful and uncomfortable time for him.
The entire process can take 1-2 weeks. First he'll go 'blue' and his eyes will cloud over (really stressful time because they can't see!), then it will all clear up like he's shed, then 2-3 days later he'll actually shed. Make sure humidity is up around 70% and he has something rough to rub on to start the shed (like a climbing branch, etc).
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1.0 Ball Python "Aragorn"
1.0 Kenyan Sand Boa "Gimli"
1.0 Saharan Sand Boa "Frodo"
0.1 Rough-Scale Sand Boa "Arwen"
0.1 California Kingsnake "Gentoo"
1.0 Mexican Black Kingsnake "Indigo"
1.0 Snow Corn snake "Chile"
0.1 Australian Cattle Dog/Pointer
"Kira"