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.
Facts on vitamin A and psoriasis. 1  Vitamin A can be very effective in treating psoriasis. 2  Creams and tablets can be prescribed. 3  High doses of Vitamin A should only be given under specialist supervision.  A combination of Vitamin A and phototherapy (light treatment) can give excellent results of most patients.
The 'sunshine vitamin' boosts overall health and can be an effective psoriasis treatment. Like many psoriasis patients, Caroline Carroll has had to experiment with different treatments after one stops working. But she's pretty sure keeping up with a healthy dose of vitamin D in her regimen makes a big difference.