I have two red tailed boas in the same cage (I know it's a bad idea but I plan on making a divider pretty soon) and they're about 3 feet long. One has been having trouble shedding for about a month now and I tried using a wet rag to gently get the dry skin off but it still has some on it. The other just won't come out of its box. I tried feeding them last week and they would eat.

My questions are

What should I do about the snake that won't shed?

Should I just let the other snake sit in the box all it wants or should I try and take it out?