Chickenpox is a viral infection caused mainly by the herpes simplex virus. For patients with fever, they can take oral ibuprofen for antipyretic treatment, but it is recommended that the fever is generally above 38.5°C before taking the medicine. Ibuprofen belongs to the antipyretic and analgesic drugs of the Antithix class, which can cause damage to liver function and have a certain stimulating effect on the stomach and intestines, and can also be used in patients with rheumatoid arthritis to play the role of antipyretic and analgesic. If the fever of chickenpox exceeds 38.5℃, you can take oral ibuprofen for antipyretic treatment, but it is only symptomatic support treatment, and it can not shorten the overall course of chickenpox.