Cold sores are caused by herpes simplex virus. It is possible to get oral herpes from someone's genitals or fluid that comes into contact with genital mucous membranes (i.e. sperm)
"Genital Herpes is contagious via mucus membranes, found in the mouth, genitals, nose, eyes and anus. They contain a thick liquid in which Genital Herpes travels. Sperm and vaginal fluids will usually be mixed with the fluids from mucus membranes."
Yes if the donor is carrying Herpes simplex virus type I or II.
No
Pickles don't cause cold sores.
Almonds don't cause cold sores.
Eating chili doesn't cause cold sores.
An asthma inhaler doesn't cause cold sores.
Unhealthy teeth doesn't cause you to have cold sores.
Yes stress DOES cause cold sores. I hope this answers your question.
Yes. There is cream for cold sores though.
Getting a sun burn doesn't cause a cold sores but it can trigger break outs. The oral herpes virus is what causes cold sores.
If some foods lower your immune system, then yes certain foods can cause cold sores. When your immune system is lowered by stress or illness then you can get a cold sore.
No they do not.
Herpes and syphilis are STDs that can cause sores on the mouth or genitals (or anywhere else).