Toxic shock syndrome (TSS) is a rare but life-threatening complication of bacterial infection or colonization. TSS can affect anyone, male or female. It generally is characterized by high fever with or without chills, a sunburn-like rash, and shock (low blood pressure and/or very high heart rate).
Symptoms usually evolve very quickly and treatment almost always requires hospitalization, intravenous antibiotics, and IV fluids, often with medicines to increase blood pressure.
Of note, TSS can occur in young women who wear tampons, although it is important to note that tampons themselves don't cause TSS and changes in tampon manufacturing have greatly reduced the risk.