I would check K, D ,Calcium, and Magnesium levels or get a Dr to do it.
Also, with
scalp dermatitis it can be caused by
dandruff Dandruff is caused by 3 types of fungus, so if you only use one type of shampoo it will never go away. I think using Cesium Blue, Head and shoulder and another... check the active ingredients on the back. Usually the two are because you are having a reaction to the cold. So, use the shampoo, conditioner, and lotion on your skin.