Hey my bf and i usually give our snakes a bath..let them soak in a holding cage..it just helps them along.
And about feeding and handling your snake while its in shed, it all depends on your snake. All of ours will eat while in shed.. sometimes its just a smaller meal..but dont deny your snake a meal if its hungry. Just judge each snake individually..some may not want to be touched in blue...but..some act perfectly normal. OK!