give it a large water bowl so it can bathe and trap moisture between the old skin and the newly forming skin underneath.it does sound like its due to shed, has it been refusing food over the last week ? are its eyes going milky white?
When you go to get it out , try letting it come out to you instead of reaching into its viv. By reaching in you are creating a large image in its vision, causing it to stress out,
If it is due to shed your best leaving it alone till its done, then feed it up heavily to encourage it to become docile again, a well fed snake is far more docile