Dude I had the same thing it will go away in a couple weeks to a month

Use either a prescription shampoo or new axe shampoo, also wash your hair twice a day.

It stores excess energy in your food away for when you really need it, it was a defence mechanism that early man had to prevent him from starving after long periods of time without food.

It will usually take 1 or two months depending on how bad it is.