Generally speaking, the vertical axis of a tropical cyclone, usually defined by the location of minimum wind or minimum pressure. The cyclone center position can vary with altitude. In advisory products, refers to the center position at the surface.
Two prescription medicationsâVectical and Dovonex, which are applied to the skinâinclude vitamin D as their main active ingredient. Edee Scott, 72, of Corona, Calif., says vitamin D medication has helped calm her psoriasis, which is most severe on the palms of her hands and feet. She's had psoriasis since age 14, but it's only in the past 15 years that her psoriasis has taken on a life of its own, she says.
There are several effective topical treatments for psoriasis. While many can be purchased over the counter (OTC), others are available by prescription only. Corticosteroids, or just steroids, are the most frequently used treatment for psoriasis. They are referred to as anti-inflammatory agents, because they reduce the swelling and redness of lesions. Anthralin, synthetic vitamin D3, and vitamin A are also used in prescription topical treatments to control psoriasis lesions. OTC topicals come in many different forms. Two active ingredients, salicylic acid and coal tar, are approved by the FDA for the treatment of psoriasis.