What's Really Going On With Your Scalp?
With the changing of seasons and more exposure to the elements, you may be experiencing some changes with your scalp. If you have scaly patches along with burning and itching, you may have scalp psoriasis. A chronic, non contagious, disease of the immune system that can range from mild to severe. With scalp psoriasis your immune system is overactive, triggering skin inflammation and causing skin cells to be produced faster than normal. Usually your body takes 28 to 30 days to produce new skin cells and shed old ones. Psoriasis pushes skin to the surface in 3 to 4 days! Since your body cant shed skin cells that rapidly, the dead skin piles up on your scalp in patches.
Psoriasis is generally a genetics thing. Stress, infection, and certain medication can trigger the gene and cause it to become active. To combat psoriasis you should should use a shampoo with salicylic acid like Matrix Raw scalp care anti dandruff shampoo available in salon for $26.

Be sure to use for at least 8 weeks to give your scalp time to heal.
TIP: Scratching and picking of scales can result in hairloss. Your hair should grow back when your scalp heals but i would advise a visit to your dermatologist.