The rash of chickenpox can also be found on the face, but mainly on the trunk, mainly in a centripetal distribution, more on the trunk, less on the face, head and extremities, first on the trunk, gradually spreading to the face, head and extremities, the rash can be spotted, papules, herpes and crusted rash. Because the rash appears in stages and batches, it is possible to see spots, papules, herpes and crusts at the same time. The rash is most contagious at the time of emergence and usually ceases to be contagious after crusting. The rash is followed by a fever 1-2 days before the rash appears, and after recovery, the body will produce antibodies and will generally not suffer from chickenpox again. However, the virus can be latent in the body for a long time and can be activated later to cause shingles. Chickenpox can develop all year round, usually in spring, and is common in children.