What should be paid attention to when using herpes zoster?

Herpes zoster commonly used drugs are the following, the first antiviral drugs, should be used as soon as possible, commonly used drugs are acyclovir oral, each time 200mg, 5 times a day, 5-10 days a course, or 400mg, 3 times a day, 5 days a course. Valacyclovir 1000mg, 3 times a day, 7 days a course. Famciclovir 500mg, 3 times a day, 7 days a course. Patients with reduced renal function need to reduce. The second point is pain medication, commonly used drugs are analgesics, 1 tablet a day, carbamazepine 0.1g each tablet, the first time you need to take half a tablet, and then gradually increase to 3 times a day, each tablet, pain relief effect is obvious, but need to pay attention to the side effects of drugs, such as white blood cells and platelets decreased, rash and liver and kidney function changes. Patients with a history of atrioventricular block and bone marrow depression history are prohibited. The third point is nutritional nerve drugs commonly used drugs are vitamin B1, 10mg three times a day oral.