VetraSeb CeraDerm P Mousse is a leave-on treatment for dry, itchy, sensitive, or irritated skin. Pramoxine is a mild numbing agent that can help relieve itching. VetraSeb CeraDerm P Mousse contains ingredients that moisturize and soothe the skin. They also provide the necessary building blocks for restoring skin barrier integrity and support the skin's natural immune system.