Positive IgG antibodies to herpes simplex virus type 1 can be found in two ways i.e. previous infection and morbid infection. Positive IgG antibodies only indicate that the patient has had a previous infection with herpes simplex virus type 1. If there is no onset of illness at this time and it is not contagious, there is no need for treatment. If both IgG and IgM antibodies are positive, it means that the person is now in the period of viral infection, and antiviral drugs such as valaciclovir hydrochloride or famciclovir tablets can be taken orally as prescribed by the doctor. Herpes simplex virus type 1 is transmitted through kissing and other close contact, causing pain and blisters on the skin and mucous membranes, such as the perilipids, mouth and throat. It is transmitted directly through the skin or the respiratory tract, and may be contracted when the body’s immunity is lowered and is prone to recurrence. It is recommended that if you are infected with herpes simplex virus, you need to consult a doctor at an early stage, and actively carry out antiviral treatment and immunotherapy under the guidance of a doctor.