Chickenpox is an acute infectious disease that is self-limiting. If you have chickenpox on your legs, you should be guided by your doctor to promote control and recovery through symptomatic medication. Chickenpox is caused by viral infection, treatment is based on antiviral and symptomatic treatment, you can take antiviral drugs such as acyclovir under the guidance of a doctor. Fever symptoms can be prescribed symptomatic antipyretic drugs, such as oral acetaminophen and other drugs to relieve fever and analgesia. If the chickenpox on the legs becomes itchy, oral antihistamines, such as loratadine, may be given under medical supervision to relieve the itching. If the chickenpox has not ruptured at this point, you can also apply a topical glycerite lotion to relieve the itching. If the chickenpox rupture due to itching, you can apply erythromycin ointment on the affected area as prescribed by the doctor to fight infection and reduce inflammation. Chickenpox is contagious, and it is important to sterilize and isolate personal belongings. Specifically, you need to go to the hospital and follow the doctor’s instructions for medication.