This infection is very contagious and is transmitted by direct contact with ulcers, or sometimes with the affected area when there is no ulceration.

Herpes causes blisters or ulcers in the mouth or genitals, accompanied by fever and general malaise. Sometimes the virus affects other parts of the body, including the eyes and the brain.

In general, doctors can easily recognize the ulcers caused by herpes, but sometimes it is necessary to analyze a sample obtained from an ulcer or perform blood tests. No medication can eradicate the infection, but antivirals help relieve symptoms and make them disappear quickly.