Dry scaling skin on the feet is most commonly due to chronic athlete's foot. This is caused by a fungal infection of the skin and is often associated with a fungal infection of the toenails. Frequently, the skin has a dull, reddish appearance and is an "moccasin" like distribution on the bottom of the foot.
Psoriasis also causes dry scaling of the skin. It presents itself as small, white flaky patches. When these scales are scrapped off it will cause pinpoint bleeding. Psoriasis can also present as pustules or small blisters.
Neurodermatitis often presents itself as a solitary patch of dry, scaling skin that itches constantly. Commonly, it occurs on the ankle. Its cause is unknown. Treatment consists of using topical steroid compounds. Injecting the area with a cortisone compound will also often cure the condition. Allergic dermatitis and contact dermatitis also cause skin rashes but tend to be more acute.
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