My child is two years old and has had hand, foot, and mouth disease for four days.

Patient's question:

Age of the child: My child is two years old. It has been four days since the discovery of hand, foot, and mouth disease. The temperature is 37.4°C. The child has not eaten for three days. Breathing is heavy and a bit rapid. Sleep is poor, with crying during sleep. When awake, the child is in good spirits. Blood tests were conducted at the hospital, and the doctor said everything is normal. Is this a normal reaction? Could it be a reaction to pulmonary edema and encephalitis?
Medical history and treatment effectiveness: Received three injections of Xiyanping and took Cefixime, but the symptoms did not improve significantly.
Help needed: How to further treat this condition? Is further examination necessary?

Doctor's answer:

Medical Analysis: My child is two years old and has had hand, foot, and mouth disease for four days. Hand, foot, and mouth disease is a contagious childhood illness also known as eruptive vesicular stomatitis. It commonly occurs in children under the age of five and can cause blisters on the hands, feet, and mouth. In some cases, it may lead to complications such as myocarditis, pulmonary edema, and aseptic meningitis and encephalitis. In rare cases, severe illness can progress rapidly and result in death.
Treatment Options: Common medications include acyclovir, valacyclovir, famciclovir, and traditional Chinese medicine.