Plaque psoriasis is the most common form of psoriasis. It typically causes raised, red lesions covered with silvery white scales. Plaque psoriasis can occur on any part of the body, but most commonly on the scalp, knees, elbows, and torso. Sometimes, the lesions can appear in the same place on the left and right sides of the body.Important Safety Information Patients should not use Sorilux Foam if they have been told by their doctor that they have a high level of calcium in their blood (hypercalcemia). The medicine in Sorilux Foam has been shown to cause hypercalcemia. If hypercalcemia occurs, patients are advised to stop using Sorilux Foam until calcium levels return to normal. Sorilux Foam is flammable. Patients should avoid fire, flame, or smoking during and right after applying Sorilux Foam to the skin. Patients should avoid excessive exposure of the treated skin to natural or artificial sunlight (including tanning booths and sun lamps). Patients are advised to wear a hat and clothes that cover the treated areas of the skin if they have to be in sunlight. The most common side effects of Sorilux Foam are redness and pain of the treated skin areas. Sorilux Foam is for use on the skin only. It is not for facial, oral, ophthalmic, or intravaginal use. Patients should tell their doctor if they are pregnant or planning to become pregnant. It is not known if Sorilux Foam can harm an unborn baby. Patients should tell their doctor if they are breastfeeding. It is not known if Sorilux Foam passes into breast milk. Patients are advised not to apply Sorilux Foam to the chest area if they are breastfeeding a baby. This will help prevent the baby from accidently getting Sorilux Foam into his/her mouth. Patients should tell their doctor if they are getting light therapy for their psoriasis.