Tinea capitis and psoriasis are quite different from each other, starting with their causes. The causes of psoriasis are not very clear and may be related to factors like immune infection and heredity, whereas the cause of tinea capitis is quite clear, as it is caused by fungal infection. Furthermore, their treatments differ. It is recommended to use antifungal medications to treat tinea capitis, while psoriasis is generally treated with immunosuppressants and corticosteroids. Finally, the symptoms of tinea capitis include scaly patches, crusting, and itching, whereas psoriasis typically presents with scaly erythema, pustules, and less itching.