I just wanted to recommend a stimulating tea that has worked for me in reviving the scalp. Try it for 1 week and see/feel the difference.
I boil my water and let it simmer down and then add 1 tea spoon of each:
Cover the tea pot and let it sit there for atleast 20 mins. Then drink half of your tea and put the other half of it on your scalp. Do this twice a day. Enjoy!