The itchy sensations sounds like the cobweb phenomenon Robert describes in AD pages283-285. Unsusal amount of energy moving your head pprobably due to the pressure exerted by the rope technique. Just ignore it if it's bearable.
I've started to feel the same around my right eye and thr side of my mouth but they go away if I ignore them for a while.
Floating feelings? Keep going with the rope. It sounds like you're close to exiting.
2cents
jouni
It sounds like energy sensations to me. Where do you envision the Rope over your chest ? you might try envinisioning it over your head since the energy sensations seem to be centered there. It might help with the exit
Happy Travels

Windameir
To make the best better
The rope goes over my third eye.
I'll try to ignore those itchy feelings.
I did get a buzzing in my left ear the last time I tried rope.
Whenever I do the rope technique my scalp,face,neck and arms get itchy feeling.
As soon as I stop using the rope technique the itchy feeling goes away.
Also I can feel my astral body floating from side to side or the bed starts to feel like waves under me.