Polyethylene Glycol 3350 (MiraLax) ??

Does anyone know about PEG 3350 (MiraLax) ??

Why is it a solid ??
Can all PEG's be made solid ??
Can it be made back into a liquid ??

I think the # for peg refers to the size of the molecule. ppl use peg 200, 300, and 400 for ecigs.

I just found out I have something called Proctalgia Fugax and got prescribed to it but I haven't heard anything about it except my girl tells me its like a powder or something you mix in a drink. She has to give it out at the care facility she works at.

What's the script for???