Why do u get cold sores

Cold sores are caused by the herpes simplex virus. Once this virus is in you, it can cause outbreaks of cold sores. Cold sore outbreaks are often triggered by exposure to hot sun, cold wind, a cold or other illness, a weak immune system, changing hormone levels, or even stress.

Cold sores generally aren’t serious, but the infection may be life-threatening for someone who has a weakened immune system because of AIDS, another condition, or medications. If you have a severe case of a skin condition called eczema, you may get cold sores over large parts of your body.

Having a cold sore does not necessarily mean you have an STD. Most of the cold sores are caused by herpes simplex virus type 1 (HSV-1), which usually affects the lips and is not generally transmitted by sexual contact. Though less common, cold sores may be caused by another type of herpes simplex virus called HSV-2.

Genital herpes is a sexually transmitted disease (STD) caused by the herpes simplex virus type 1 (HSV-1) or type 2 (HSV-2).

Researchers at the University of Edinburgh have found that people affected by cold sores have a mutation in a gene, which means their immune system is not able to prevent them from developing. Cold sores are caused by a strain of the herpes simplex virus – herpes simplex virus type 1 (HSV-1).

A baby is most at risk of getting a herpes infection in the first 4 weeks after birth. You should not kiss a baby if you have a cold sore to reduce the risk of spreading infection. Cold sores and other blisters caused by the herpes virus are at their most contagious when they burst.