Hi Shahd, Thanks for writing to us. You seem to be having seborrheic dermatitis of scalp. I would advise to treat that oily patch over scalp, use a ketoconazole based antidandruff shampoo. Initially you should use it twice or thrice in a week and once control is achieved restrict its usage to once in a week. On rest of the days use a shampoo meant for oily scalp. Sunsilk, loreal, pantene, garnier are some brands having shampoo for oily scalp. You may take your pick. Hope this helped. Take care