I am using coconut oil daily since several years ,I have dandruff problem so I was given ketoconazole shampoo but pharmacist said not to use oil, but I can't live without oiling my hair, so will there be any deadly effects on hair if I use ketoconazole shampoo (I will apply oil at least 5 times a week and use ketoconazole shampoo 2 times a week) What's your opinion? Pardon me it's a lengthy question.