sir am having severe pain from scalp when my hair are gently moving and etching also. etching is severe in morning and night before sleep.i was having black color scales in my head 5 months back by combing and using shambo i washed out it. now am having yello color dantdruff by combing and using shambo i used to clear my scalp now my scalp is clear but stil having pain and etching from scalp. i went to doctors and gone for ferritne tsh hb test everything is normal. doctors are not suppose to find the cause and solution for my issue. sir please help me