Mine fell out pretty quickly two weeks after the first round of ac chemo. At first it was fascinating, but then I realised it was all going to come out anyway, so I clippered it with a number 4 clipper (so not right down to the scalp). I still have a little bit, but very fine. When it fell out it went from the front first, with the very back of my head the last to go.So I guess it depends on how much it annoys you to have it falling out all over the house, as opposed to cutting it off all at once where you can clean it up quickly.
I too was told to use sorbolene on my head but I found it was too much, and I came out in pimples, which I treated with witchhazel. So now I just use a bit of baby shampoo every few days, and just water in between.
My scalp was also sensitive when the hair was falling out...very difficult feeling to describe to anyone else!
On the plus side....I knew I would save money on shampoo and conditioner, but I filled up a whole bag of other assorted "products" which won't be used for a while.
All the best
Jane