One of mine isn't a stranger to a scruffy shed. But we have an agreement, he chills and I help remove it when it does happen
But there are some little things you can offer as an extra helping hand when in blue. For example, when any of mine start showing signs, I'll mist spray them directly and I'll spray their tree bark which I use as part of their hides, cool side, which is great at holding some moisture for a while and then increases enclosure humidity whilst it does so.
In addition to this, the obvious offering of fresh drinking water, but only filling the water dish half way so if they try to get in for a soak (my adults are to big to fit in completely now), there's less water spilling over the sides.
And finally, the obvious warm water soak when they've not shed completely.
In terms of feeding, my observation has been with mine that they're more willing to eat whilst in shed when they're younger, but I've had plenty of rejections when I've thawed their food, opening their enclosure and realising I've missed their going blue signs (pinking bellies, cloudy eyes).
I had a close one this weekend. Saw my pastel spotnose out and he looked fine and feeding day so he had his meal that evening, the next day his eyes were all clouded.... phew!!