Chickenpox is primarily caused by an infection with the varicella-zoster virus, and the disease is generally transmitted through the respiratory tract.

At the onset of the disease, red papules appear on the body, face, or scalp, which gradually develop into small vesicles. As the vesicles grow, they feel itchy. Scratching them can break the vesicles, leading to oozing and crusting.

As the condition progresses, it can peak within two to three days, presenting with widespread vesicles throughout the body. In such cases, antiviral treatment should be promptly administered, such as acyclovir tablets or valacyclovir dispersible tablets. These can be combined with traditional Chinese antiviral medications, such as Scutellaria root oral solution.