These skin eruptions are due to overly rapid growth of cells in your skin's outer layer. Many people also inherit a tendency toward psoriasis. Dry skin, skin injuries, infections, certain drugs, obesity, stress and lack of sunlight can all aggravate your symptoms. Psoriasis isn't contagious. You can't spread it to other parts of your own body, or to other people, simply by touching.
Psoriasis typically goes through cycles.
The symptoms can persist for weeks or months, followed by a break. Maintain a healthy weight. Psoriasis occurs often in skin creases or folds. Avoid scratching, rubbing or picking at the patches of psoriasis. Bathe daily to soak off the scales.