You can go ahead ( sorry ) and feed as normal ... then decide how you want to deal with the stubborn shed in a few days imho
After a couple of days of digestion you can wrap it up in a wet , rough textured bath towel and let it slither around inside whilst applying very , very gentle pressure to the head no neck region . Any dead skin will come off onto the towel without causing any pain or discomfort to the snake ( or you !) .
I’d be amazed if it doesn’t work
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