You can treat flaking and dryness with over-the-counter
dandruff or medicated shampoos. Shampoo
the hair vigorously
and frequently (preferably daily). Active ingredients in these shampoos include salicylic acid, coal tar, zinc, resorcin, ketoconazole, or selenium.
If the symptoms persist, then it would be best to get it confirmed from a dermatologist
I hope it helps. Take care and please do keep me posted in case you have any additional doubts. Kind regards.