Hello,
Herpes simplex 1 usually causes lesions in mouth or skin. Usually its blisters or sores. It can also affect the eye causing eye infection. It is usually transmitted by saliva.
Usually they are asymptomatic, and occur commonly in childhood. Having only 10% of the disease could be left untreated ideally. But it depends on what symptoms you have developed. You should also know that menigo- encephalitis is also one of the complications of herpes simplex. If you have any symptoms that is affecting your daily life.
You can start with acyclovir; it's a anti viral drug. I suggest you visit a physician. And also look in for symptoms like nausea, head rigidity or worsening of symptoms then meet your care holder early.
Thank you.