Go to your pharmacy an ask for an anti-dandruff shampoo which contains the active ingredient Ketoconazole. Ketoconazole shampoo is used to treat scalp conditions that are caused by infection with the yeast Pityrosporum. These include dandruff, which is considered to be a mild form of seborrhoeic dermatitis. Ketoconazole shampoo should be used to wash the hair twice weekly for two to four weeks. It should be left for three to five minutes before rinsing. Once the scalp has cleared up these conditions can be prevented from coming back by using the shampoo once every one to two weeks.
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Application of regular lemon essence into fresh coconut oil and massaging the scalp for 10 minutes before taking bath is one possible solution worked for those in my homestead suffered with similar problem. no harm for u 2 to try.....nothing hazardous anyway here.