noun. 1  a. A cylindrical, usually metal casing containing the primer and charge of ammunition for firearms. 2  A case filled with high explosives, used in blasting. 3  A small modular unit designed to be inserted into a larger piece of equipment: an ink cartridge; a disposable cartridge of caulking compound. A removable case containing the stylus and electric conversion circuitry in a phonograph pickup.
Guttate psoriasis causes a rash formed of drop-shaped salmon-pink areas on the chest, arms, legs and scalp. Guttate psoriasis. Red drop-like lesions are found on the skin. Image courtesy of Dr Hon Pak.
Stress and itch. Stress is a common trigger for a psoriasis flare. Stress also can make itch worse. This makes managing stress a particularly important life skill for people with psoriasis. Consider the following ways some people with psoriasis and psoriatic arthritis are effectively reducing stress in their lives.