The rash of chickenpox is usually seen first on the trunk and head and face, and then spreads to the extremities. The rash is characterized by a red blotchy rash at first, which then becomes a papule and gradually develops into a blistering rash. The rash is characterized by a red halo around the rash, which is thin-walled and easily broken, and after a period of time becomes cloudy and turns into a pustular rash. Most of them crust over and peel off within a week or so and usually do not leave a scar. If there is a secondary bacterial infection, the rash will take longer to crust over and fall off. The chickenpox rash is characterized by a centripetal distribution, mainly on the trunk, but less on the extremities. In some patients, a rash may appear on the skin and mucous membranes of the mouth, throat, conjunctiva and vulva, and the rash may rupture to form ulcers. The clinical symptoms of most patients with chicken pox are relatively mild, and most patients will be cured after a week or so of timely antiviral treatment.