The signs and symptoms that give scarlet fever its name include: 
Red rash. The rash looks like a sunburn and feels like sandpaper. It typically begins on the face or neck and spreads to the trunk, arms and legs. Pushing on the reddened skin makes it turn pale.
Red lines. The folds of skin around the groin, armpits, elbows, knees and neck usually become a deeper red than the other areas with the rash.
Flushed face. The face may appear flushed with a pale ring around the mouth.
Strawberry tongue. The tongue generally looks red and bumpy, and it's often covered with a white coating early in the disease.
 Signs and symptoms of scarlet fever also include: 
Fever of 100.4 F (38.0 C) or higher, often with chills
Very sore and red throat, sometimes with white or yellowish patches
Difficulty swallowing
Enlarged glands in the neck (lymph nodes) that are tender to the touch
Nausea or vomiting
Belly (abdominal) pain
Headache and body aches
 The rash and the redness in the face and tongue usually last about a week. After these signs and symptoms have gone away, the skin affected by the rash often peels.