Hello! From the description it sounds more like scalp psoriasis. You can go through my health feed on practo on Understanding Dandruff. If you can send clinical pictures, can help you better. Meanwhile some general measures can help. 1.keep hair short. 2. You can use oil, but on clean washed scalp. Avoid ones containing heavy fragrance or menthol or camphor. 3. Use shampoos containing a conditioner, avoid fruit flavoured ones. 4. Modify your schedule so you can take care of your scalp and health both.  5. Avoid protein supplements. 6. Avoid excessively spicy and salty food. Hope this helps.