Stevens-Johnson syndrome (SJS), also called erythema multiforme major, is a systemic disease mostly involving the skin and mucous membranes. The cutaneous lesions are those of erythema multiforme ...

Small vessel vasculitis may present as palpable purpura, urticaria, pustules, vesicles, petechiae, painful red bumps and hard spots, small bruises, or erythema multiforme-like lesions. Sub cut ...