Letrozole and acupuncture for symptoms

I am 2.5 months in to letrozole and really struggling with the hot flushes at night and aches and stiffness.  Mainly the hot flushes at night as it's impacting sleep so much.  I started acupucture with a traditional chinese practitioner that I have used previously for other issues and sometimes I'm ok for a day or 2 after then symptoms return.  I have had 8 or 9 @ £85 a session and not feeling it's helping enough for what it is costing me.  A friend had acupucture where the needles go in the ears, my practitioner said she doesn't work that way.  I wondered if anyone had success with acupuncture while on Letrozole and how they treated it.  My acupuncturist thinks I should come off Letrozole as it's working against what she is trying to do. (answer was no.....)