Psoriasis is a skin condition that can appear on the legs and feet, as well as other body parts. It is a chronic disease of the immune system wherein new skin cells surface too rapidly, causing inflamed, flaky, thick patches of skin buildup. Psoriasis is characterized by the appearance of thickened skin patches with white, red, and grayish-silver pigmentation. The areas can be small and localized or larger and more widespread. Psoriasis can cause itching and pain as it progresses.

On the feet and toenails, psoriasis may be mistakenly assumed to be athlete’s foot and other fungal infections. Psoriasis can also affect the joints in the feet and legs, causing arthritis. Psoriasis can be hard to treat, but psoriasis sufferers may gain relief from moisturizing lotions and creams, anti-inflammatory medications (check with a doctor before taking any medication), and prescription medications issued by a doctor.