Psoriasis of hands and feet.. Pattern paired and cracked, fingernails drooping. The beneficial effect of ultraviolet radiation from sunlight

Psoriasis of hands and feet:
More frequent chronic lesions may occur with constant dryness.
This type appears in a pattern that is paired and cracked, and it can be the only appearance that appears for months to years.
Psoriasis is usually less severe in summer and worse in winter and this shows the beneficial effect of ultraviolet radiation from sunlight.