Hi, Manish..
It seems that you may be having seborrheic
dermatitis (SD).
The disease runs chronic course and may spread to eye brows,scalp,chest,axillae and groin.
Exact cause is not known..but, yeast like pityrosporon ovale may be responsible.
Stress,anxiety,worries,excessive mental and physical work,sun rays exposure,
Sleeplessness,diseases like Parkinsonism may precipitate or exacerbate the disease.
There may be genetic tendency.
Take antifungal tab like
ketoconazole with steroids in tappering dose.
Apply mild steroid with
clotrimazole cream on the face.
Avoid soap.
Ketoconazole shampoo may be used to rinse the scalp.
Be calm and cool.
Avoid spicy and oily food.
I hope you got my answer.
Thanks.
Dr. Ilyas Patel MD