In the case of cold sores,sometimes being in the sun can cause a recurrence. During the body's first exposure to the herpes virus, the immune system develops antibodies and other weapons against the virus.
During a recurrence, then, this 'immune memory' can hep to fight off infection more quickly.
As a result, as time goes on there are usually fewer sores, they heal fater, and the outbreak is less painful.
Some people never experience another recurrence, which is often attibuted to a strong immune system response.
Given the lack of a permanent and curative treatment for both HSV-1 and HSV-2, WHO and partners are working to accelerate development of HSV vaccines and topical microbicides, which will have a crucial role in preventing these infections in the future.
Several candidate vaccines and microbicides are currently being studied.
This pain or tingling sensation is called the prodrome and typically occurs 1 to 2 days before the cold sore apprears. Flu-like symptoms such as headache,fever and swollen glands.
Therefore, in the case of genital herpes a person could experience outbreaks in any of these areas.HSV-2 is almost entirely sexually transmitted through skin-to-skin contact, causing genital herpes.“Access to education and information on both types of herpes and sexually transmitted infections is critical to protect young people’s health before they become sexually active,” Dr Marleen Temmerman, Director of WHO’s Department of Reproductive Health and Research The new estimates highlight, however, that HSV-1 is also an important cause of genital herpes.In January, WHO estimated that 417 million people aged 15-49 years have HSV-2 infection, which causes genital herpes.Taken together, the estimates reveal that over half a billion people between the ages of 15-49 years have genital infection caused by either HSV-1 or HSV-2.Herpes is a lifelong infection, which often has mild or no symptoms but can be detected by the presence of antibodies for HSV-1 or HSV-2 in the blood.It is difficult to determine the proportion of HSV-infected people worldwide who have symptomatic disease, as symptoms may be mild or simply not recognized as herpes.When the virus reactivates it travels nerve paths to the surface of the skin,sometimes causing what is known as an 'outbreak' or episode of symptoms.If and when a recurrence does happen it is sometimes related to a time when the immune system is weakened or under pressure, such as after an illness, during times of stress, due to a poor lifestyle,surgery,etc.People with orolabial herpes symptoms may face social stigma, and can experience psychological distress as a result.In people with weak immune systems, such as those with advanced HIV infection, HSV-1 can have more severe symptoms and more frequent recurrences.