Welcome to healthcare magic,
You seem to be having seborrhoeic dermatitis
. Seborrhoeic dermatitis is a chronic condition, but very much controllable. It is caused by an yeast called malasezzia. This yeast is a normal resident of human body and once its colony increases you mount reaction against it causing rash
. This yeast loves oil and therefore it is seen more in oily skinned.
So the aim of any treatment is to bring down the colony of malasezzia. ketoconazole
2% cream twice a day will help but you need a prescription for it. Avoid applying oil on the face and scalp
Hope this helped