Humid hide after a nice soak should get that off. Pezz had a troubled shed and he got it all off with a nice soak and a humid hide.
Really the concern is stuck eye caps, complete stuck shed on neck, and stuck shed on tail tip. Outside of that it really is not harmful for stuck shed but on vents or nostrils can make them sound like they are wheezing so verbally it can be unnerving.
Just have a nice soak, some TLC rubbing (q-tips work wonders for getting delicate areas) and a nice humid hide of moss should be all that is needed. Don't be surprised if your snake hisses at you for soaking it. They all do
Just follow the guidelines for soaking (around 80 degree water and no more than 1/3 or so up his sides for the amount of water, never ever leave a soaking snake unattended).