Rash: General name for any type of skin inflammation.
Vasculitis: Inflammation of a blood or lymph vessel
Venous Thrombosis: Formation of a blood clot in a vein. The clot can form in superficial veins and cause few if any symptoms or it can form in the deeper, larger leg veins which can be life-threatening in serious cases. A part of the clot can break off and travel (embolism) to the heart or lungs where it can cause serious problems.