Signs and symptoms depend on the type of illness caused by group A strep. Strep throat causes fever, sore throat, and swollen lymph glands. Strep skin infections causes red, weeping sores. Early signs and symptoms of necrotizing fasciitis are fever and severe pain, swelling, heat, and redness at a wound site. Early signs and symptoms of streptococcal toxic shock syndrome often include fever, dizziness, and confusion. Streptococcal toxic shock syndrome has no sign or symptom that distinguishes it from other illnesses making it difficult to diagnose.