My brutalist approach has been to keep clipping it off at a #4 until I was absolutely sure there was no chemo fuzz left.
My first experience was that it took a couple of months for the regrowth to look normal enough for me to be able to tolerate it. I was 43 then and by the time I was 50 it was curly and waist length again, albeit not as dark as previously. I stopped permanent dying it and just used rinses to give it a bit of colour.
Roll forward to the present, it took me 18 months to stop clipping it following chemo in 2016/17. My poor partner hated it, but I didn't mind. It was a bit edgy and deliberate rather than its current state. Now it's straight and totally grey but the quality is OK. It's driving me spare growing it out but it's nearly at the point I can get some sort of style cut into it. I must admit it's nice to not be confronted by my jug like ears all the time :)
