How do people get psoriasis?

Common psoriasis triggers include: Infections, such as strep throat or skin infections. Weather, especially cold, dry conditions. Injury to the skin, such as a cut or scrape, a bug bite, or a severe sunburn.

Can psoriasis go away on its own?

Even without treatment, psoriasis may disappear. Spontaneous remission, or remission that occurs without treatment, is also possible. In that case, its likely your immune system turned off its attack on your body. This allows the symptoms to fade.