My dad tried it. He got two small coin sized bald spots on his head last year (I think it was caused by too much stress) and his hair did grow back. He also took some medicines for hair loss, so I'm not 100% sure on this, but you can try.
Hi OP, I don't know if it's useful, but you can use a ginger to scrub the areas. I heard ginger is good to use for hair growth, you can try this at home and see the result after a few days.