Hi, The lesion you have is most probably seborrheic dermatitis. There may be whitish greasy scales on paranasal areas,moustache and scalp. It is a dandruff. It might spread to axillae and groin areas. There may be itching and discomfort.Secondary infection by bacteria might occur. Stress,anxiety,deppression,sun exposure, physical exertion,sleeplessness,oily food,poor immunity and poor hygiene ..etc may cause or exacerbate the disease. You consult dernatologist for firm diagnosis. Steroids in tappering dose for few weeks with antibiotics and antihistaminics might improve the disease. Apply mild steroid with antibiotic cream on the lesion. Cleanse the face with antiseptic face wash and do shampoo with ketoconazole shampoo. You may feel better after few werks treatment. I hope you got my answer. Thanks. Dr. Ilyas Patel MD