Itchy scalp? Here are the main causes.

Use specific shampoos containing ketoconazole, salicylic acid, or zinc pyrithione.
If symptoms persist for more than two weeks, consult a dermatologist for appropriate treatment.

2- Psoriasis: When the body attacks itself
. Scalp psoriasis is an autoimmune disease in which the body produces thick, red, scaly patches. These patches are itchy, and scratching can cause bleeding.

Effective solutions:

Apply corticosteroid lotions and use medicated shampoos.
For severe flare-ups, oral treatment may be necessary.
Learn to manage stress,

as it often worsens symptoms.