A bad shed need help in progress

[Waltorian]

Reggy is in the middle of a bad shed, I didnt even see it coming because hes been in his hide a lot latley after puking up those mice a week and a half ago, now hes shedding and not very well at that...I hate being a newbie and asking wacky ??? but when you dont know, you dont know..I need to clean his cage but I dont know if I can pick him up.....I would appreciate some advice..also how long should it take to complete a shed...wa;tor