Skin is the first largest organ in our body which is acting as protective barrier to animals against invasion from microbes and pathogens. It is composed of two major layers, the outer epidermis and the inner layer is dermis. The outer epidermis contained a densely packed keratinocyte layer which serves as a protective barrier against pathogens along with various environmental stimuli. Psoriasis-it is a chronic life-long inflammatory disease that primarily affects the skin, musculoskeletal system, the gastrointestinal system and the eye. It is a non-contagious disease involves the mechanism...