How is herpes on the hand caused?

Herpes on the hands can cause herpes zoster or herpes simplex. Herpes zoster is mainly caused by varicella-herpes zoster virus infection. Under normal circumstances, the body's immune system is reduced, such as fever, cold, fatigue, stress, tumor and serious medical diseases. The virus can be transmitted by droplets. Herpes simplex is also caused by a decrease in immunity due to herpes simplex virus type I infection. These viral infections can be treated with oral famciclovir tablets or acyclovir tablets.