Hand, Foot, and Mouth Disease is an infectious disease caused by enteroviruses, most commonly affecting children under the age of 5. The treatment principle primarily focuses on symptomatic therapy, including the use of antiviral medications and traditional Chinese herbal remedies, as well as vitamins B and C.

Discuss the treatment and care methods for children with hand, foot, and mouth disease without fever symptoms, emphasizing the importance of hygiene and observation.