Both hand, foot and mouth disease and chicken pox are caused by virus infection. Hand, foot and mouth disease: acute onset, fever; Oral mucosal rashes appeared earlier, initially miliary maculopapules or blisters, with redness around them, mainly on the tongue and cheeks, and often on the labial and dentate sides. Subsequently, herpes appeared in the palm, toe back, hip skin, and the folds between fingers and toes, with a size of about 1-3mm, which was scattered. After the blister is broken, it becomes a shallow erosive ulcer with obvious burning sensation. Red maculopapules or blisters, ranging from a few to dozens, are common in areas such as palms and toes that are easy to rub. Some children may be accompanied by cough, runny nose, loss of appetite, nausea, vomiting, headache and other symptoms. The disease is a self-limited disease, most of which have a good prognosis and no sequelae. Very few children can cause serious complications such as meningitis, encephalitis, myocarditis, flaccid paralysis and pulmonary edema.

Chickenpox generally spreads to the whole body during the onset period, and the most dense parts are the front and back, abdomen and back. In addition, it can also appear on the head, face, scalp, soles of feet, fingers and palms. At the same time of fever or the next day, a red acne rash of rice grain size may appear. A few hours later, the acne rash turns into a bright herpes like a water drop. Chickenpox can be seen with liquid under the film and the top of the papule is pointed. A few days before the onset of chickenpox, we can see all kinds of rashes on sick children, with papules, herpes and scabies coexisting. This is the unique feature of chickenpox, that is, the unique "three generations of old and young" rash phenomenon.

Whether it is hand, foot and mouth disease or chicken pox, it is a highly contagious disease. Therefore, no matter what symptoms parents find, they should take their children to the hospital immediately. When visiting a doctor, it is best to choose a children's specialist hospital.