Since regular shampoos haven't worked for three years, you likely have a common scalp condition called seborrheic dermatitis. I recommend trying an over-the-counter medicated shampoo containing active ingredients like ketoconazole, selenium sulfide, or zinc pyrithione. If you have thick flakes, a salicylic acid shampoo can help exfoliate the scalp.\n\nTo use it effectively, massage the shampoo into your scalp and let it sit for 5 to 10 minutes before rinsing thoroughly. Use this 2 to 3 times a week. If you don't see improvement within a month, please consult a dermatologist, who can prescribe stronger treatments like topical corticosteroids. Rest assured, this is highly treatable and very common.

For your dandruff and itchy scalp, I recommend a medicated shampoo containing ketoconazole, zinc pyrithione, or selenium sulfide. Massage it into your scalp, leave it for 5 minutes, and rinse; use this twice a week. For your face, enlarged pores are often caused by excess oil. You can manage this by using a daily cleanser with salicylic acid to clear out pores, and applying a niacinamide serum to regulate sebum production. A mild topical retinoid like adapalene at night can also help refine skin texture. These are very common, highly treatable issues. If symptoms persist, please consult a dermatologist for a personalized plan.