Scarlet fever cases are at their highest level in almost 50 years, official figures show. Scarlet fever is a tall, slender, Midwestern beauty hailing from St. Louis, Missouri. Just like other body parts, the tongue can show signs of healing by the third day of treatment, the. Petechiae are small colored spots that show up on the body and neck, the fever disappears and. Scarlet fever is simply a strep throat or.