Some conditions may also cause you to have blood or protein in your urine. If you have a urinary problem, see your healthcare provider. Urinalysis and other urine tests can help to diagnose the problem. Treatment depends on the cause.
Cold sores are usually caused by the herpes simplex virus (HSV) type 1, which is transmitted by such forms of contact as kissing an infected person or sharing eating utensils, towels, or razors. Genital herpes is usually caused by herpes simplex virus type 2.
The strain of herpes simplex virus usually responsible for cold sores is known as HSV-1. In rare cases, cold sores can also be caused by the herpes simplex virus type 2 (HSV-2). This can be the result of having oral sex with someone who has genital herpes.