I have medium length wavy hair, maybe about 3-4 inches long. I use Bumble & Bumble Cocoa Shampoo & Conditioner about 1-2 x a week and use Nizoral dandruff shampoo every couple weeks. But my hair still gets very itchy. I tend to notice it mostly at night. I don't really use product n my hair. Maybe 1-2 a week I will use B&B Sumotech or Sumowax. But I end up getting really flaky hair and its super annoying. Any suggestions? I shower 1-2 x a day with just water most of the time.