I think it helps to minimize the soreness if you do shave it. We made it into a family event with my husband doing the shaving while my daughters took photos. My 18 year old then sent the photos off to family and friends!! Even after shaving it, it was still a messy process with little short hairs falling out for a week or so. The plus side was no unwanted body hair for a few months!
I am at the other end of the hair journey now with a very, very short style, nice an cool for summer, at least. It is growing back pretty much as it was before chemo only a bit thinner (i had very thick hair before so this is nice).
Hope it goes well if you decide to shave it. Take care. Deanne xxx