Hi Tina,
To me, this sounds similar to a Tic disorder, which is characteristic of poor interaction between Lung and Liver and maybe Lung and Heart. Anyway, the formula that fits this dynamic is Metal Worker. Pulling hair from the scalp may also be a sign of Heat uprising along the Liver and Gallbladder channels to the top of the head around Du 20. Pulling out the hair relieves that feeling of Heat or congestion and allows some of that Heat to escape through the pores/holes where the hairs used to be. So not only eliminating Heat is indicated, but also grounding the Yin Kidney and Lung, claiming the Heart and releasing the pent up Qi (emotions from the Liver).
Acupuncture points that come to mind are Li 2, GB 20, GB 24, LI 11, LI 4, Pe 8, Du 20, Ki 1 or 3. All shallow insertion with the thinnest needles you are comfortable using. Of course, you don’t need to needle all these points. Just pick one or two each time.