Hello and welcome to HCM
From your description and your age you maybe suffering from a
dandruff condition.
Hormonal changes with age may cause your scalp to get oilier or drier causing itching. Also any hair dye or coloring products which you may be allergic to, even if they are natural dyes.
Do you see any rashes or bumps on your scalp?
I would advise you to use a dandruff shampoo for scalp twice a week such as Keto-B(
ketoconazole based) till it subsides and continue it once a week for maintenance. On other days you may use a mild shampoo.
Dont apply any hair products like gels, oil.etc
For now you may also take an antihistamine like levocet or
fexofenadine for 7-10 days, once a day for the itching.
Keep a check if sun exposure makes it worse.
Given your age you can also check your sugar levels, liver and kidney function(general health check up) if symptoms persist, after consulting a
dermatologist.
Hope this helps.