Main causes of itching in the head is dandruff. All are trying hardly to get rid of this.
Kindly follow these steps too to get relief from dandruff.
1. Soak 2 tspn of Fenugreek (vendayam) in the night while you go for bed. Next day morning grind the fenugreek with the water like a paste and apply in the scalp and leave for 30 minutes. After that wash your hair with shikakai powder and finaly add 1/2 lemon juice on the hair.
2. Also two weeks once wash your hair with green gram powder with curd.
The dandruff will get afraid and will go away from you.