You may be having some allergy component don't use any hair colour or don't go for any hair spa treatment says Dr.Suruchi Puri who has a experience of 16 years and was associated with Femina Miss India Contest and specialises in hair related disorders . Get your self evaluated for psoriasis also at the earliest . You are welcome to take the advice at B-2/31 janak Puri or u can call 9868080 340 for more information. You can meanwhile use Topsor lotion for 1 or 2 days and show as soon as possible as visual examination is must . You can also take an anti allergy tablet if itching is too much .