U can soak ur snake in a small tub with a lid make sure there is air holes for ur snake to breath . Let it sit in there like 10/15 min open the top and gently rub the shed off if u see any on the head or eyes leave it .
And next time ur snake goes in to blue boost ur humidity in the tub/tank u can cover the top u can soak some wash cloths and ball them up and throw them in there u can add a extra water bowl on or by the hot spot . Just get that humidity up . And if it's more dry where u live I recommend a good spray of the enclosure once a week so that ur snake stays good .