Hi , I am having acute dandruff , currently I am using nyle shampoo , the texture of hair is soft but thin , the density of hair is also less , I have a small bald patch (broadening of middle hairline a bit and is increasing at back of head ) coz of heavy hairfall, the scalp is dry , if I don't oil and shampoo my hair alternate days 3 times a week my hair becomes very dry and dandruff increases . What should I do ?