Hi, I also shaved down to a number 3 when I started to lose all my hair. That was back in February. I had 4 cycles of chemo and the last one finished at the end of March. My hair started to come back about 8 weeks later, and today I went and had my first hair trim. I didn't need a shampoo or blow dry ( LOL), but it was very fine a wispy, and I wanted to get the fluffy bits removed. Perhaps I should have done this weeks ago, but I was so excited to have hair again, that I couldn't bring myself to have it cut. Today I had a good cm removed and it looks so much better. I will do the same in another 6 weeks, and hopefully by November I won't even need my wig.
All the best with your chemo.
Chris xx