Generally, the application of vaxilovir hydrochloride tablets for the treatment of herpes zoster can be taken for 10 consecutive days. Vaciclovir hydrochloride tablets are an antiviral drug that can be used to treat varicella-zoster virus as well as and infections caused by herpes simplex virus types I and II. Vaxilovir hydrochloride tablets are rapidly absorbed and converted into acyclovir after entering the body, and its oral bioavailability is 3-5 times higher than that of acyclovir. Moreover, vaxilovir hydrochloride tablets are widely distributed after entering the body, and its antiviral activity in the body is also good, and it can be taken for 10 consecutive days for the treatment of herpes zoster, while 7 consecutive days are recommended for the treatment of herpes simplex. In addition, patients should pay attention to the combination of work and rest during the treatment process, and also exercise more to improve the body’s resistance. Also, since valacyclovir hydrochloride is mainly excreted through the kidneys, it is important to drink plenty of water during the course of the medication to prevent acyclovir from settling in the kidney tubules.