Itchy scalp and hair loss are commonly caused by seborrheic dermatitis. Initially, treatment should aim to control the symptoms of seborrheic dermatitis. Under the guidance of a doctor, oral treatments such as ebastine tablets, ipristine capsules, or levocetirizine hydrochloride tablets may be used. For topical treatment, halcinonide solution can be applied. If there is an excess of oil and dandruff, selenium sulfide can be used for shampooing. By controlling seborrheic dermatitis, significant improvement can be seen in hair loss and scalp itchiness. Another scenario involves scalp itchiness accompanied by hair loss, which may be caused by a fungal infection leading to tinea capitis. Under the guidance of a doctor, ketoconazole shampoo can be used for washing the hair, and terbinafine hydrochloride spray can be applied locally for treatment.