Excess oil, fungal overgrowth on the scalp, dry skin, perspiration, stress, or sensitivity to hair products are major causes of dandruff with intense scalp itching. Maintain a dry, clean scalp and wash your hair frequently. To lessen dandruff and itching, anti-dandruff shampoos with ketoconazole, zinc pyrithione, or selenium sulphide are frequently used. Steer clear of using harsh hair treatments, sharing combs, applying too much oil, and scratching your scalp. Maintain a balanced diet, stay hydrated, and control your stress because these factors can also impact the health of your scalp. See a dermatologist if you experience severe redness, pus, hair loss, thick scaling, or persistent dandruff even after therapy. Psoriasis, eczema, and fungal infections may require special care.