About 3 chickenpox on the body, if not accompanied by obvious systemic symptoms, usually do not need special treatment, if accompanied by obvious systemic symptoms, such as itchy skin, fever, etc., can be relieved by medication. Chickenpox is a contagious skin disease caused by chickenpox-herpes zoster virus infection, the initial rash of the disease is a red rash of spots and papules, which develops into fluid-filled blisters after a few hours. Chickenpox is self-healing, if there are about 3 chickenpox on the body, not accompanied by obvious systemic symptoms, you can do without special treatment, daily home isolation, more ventilation, maintain air circulation, avoid scratching the affected area, so as to avoid scratching to improve the chances of contagion, and do a good job of day-to-day care, is conducive to the recovery of the disease. About 3 chickenpox on the body, if accompanied by obvious systemic symptoms, such as itchy skin, can be localized external use of glycerine lotion to stop itching; if the itching symptoms are serious, you can also take oral antihistamines, such as loratadine, ibogaine, etc.; if there is a fever, you can take oral antipyretic medication, such as acetaminophen and so on. All of the above drugs should be used under the guidance of a doctor, avoid self-medication. Chickenpox is highly contagious, it is recommended to rest at home and avoid going to public places during the period of illness to avoid spreading the virus.