Tinea pedis is mainly a skin disease caused by pathogenic dermatophytes, which is essentially a fungal infection on the foot, and its clinical manifestations can be divided into hyperkeratotic, papulosquamous, blistering, interdigital erosions, and the rare tinea corporis type, and its treatment is mainly some antifungal treatment. The scientific name for psoriasis should be psoriasis, which is a chronic recurrent inflammatory skin disease that is clinically divided into four types, including psoriasis vulgaris, which is the most common type, as well as psoriasis arthritis, pustular psoriasis and erythrodermic psoriasis, the treatment of which is relatively complex and is a long-term process. These two diseases can rely on topical topical medication for the lighter ones, while the serious ones need to undergo long-term systematic treatment, so these two diseases are essentially completely different.