Judge the child chickenpox no so-called easiest way, mainly from the incidence of population (epidemiology), onset of site, pre-symptoms and rash and other characteristics of the comprehensive judgment. 1. The incidence of the population: chickenpox is caused by varicella zoster virus infection, mostly in children, adults may also have the disease. 2. Morbidity part: the rash caused by chickenpox usually occurs on the trunk, limbs, face, and is generalized. 3. Pre-symptoms: Before the rash appears, the patient may have high fever when infected by varicella zoster virus. 4. Rash characteristics: the rash caused by chickenpox is easy to occur on the basis of erythema, the size of a grain of rice, blister fluid is clear, blister wall is relatively thin and tense, easy to rupture, and may leave depressed scars after the healing process, and the above lesions can be present at the same time. Chickenpox is a self-limiting disease, most patients can be cured within two weeks. If you find symptoms similar to chickenpox, we recommend you to go to the pediatric department of the hospital.