Symptoms before chickenpox need to be analyzed according to the patient’s age, such as infants, young children, older children and adults, etc. The main symptoms include low-grade fever, loss of appetite, irritability, malaise, muscle pain and other discomforts, and the specific symptoms vary from person to person. Symptoms before chickenpox mainly refer to the symptoms of the prodromal period, and the symptoms are not exactly the same for everyone. 1. Infants and young children: often asymptomatic or mild symptoms, such as low-grade fever, irritability or refusal of breastfeeding, etc., at the same time, a rash may appear. 2. Adults or older children: there may be malaise, chills, fever, headache, nausea, loss of appetite and other discomforts, and usually the symptoms last for 1-2 days and then a rash appears. Later, chickenpox rash may appear, often in centripetal distribution, and may be accompanied by maculopapular rash, blisters and scabs. Chickenpox is mostly a self-limiting disease, and can be cured in about 10 days. For severe cases, symptomatic treatment, antiviral treatment, and prevention of complications are needed. If you suspect chickenpox with symptoms similar to those above, such as fever, headache, fatigue, etc., you need to consult a doctor in time for clarification and active treatment.