Hi, I have used hairdye to my hair. I got itching in my scalp and checked hairdye product it is ammonia based. I consulted Dermatologist he told me its due to irritation of my skin with hairdye and told me to use NoAmmonia hairdye. The itching gone till i used medicine. The course for 1 week is completed so i stopped using medicine. The itching is back. Does anyone faced same problem. it's troubles me in office also. Can anyone suggest me how to solve the problem. I came to know there are sideaffects with ammonia hairdye and normal hairdye also. but i realized very late.