If someone touches a cold sore and then touched you would you get genital herpes?
No hun, herpes doesn't work like that.
They would have to touch a cold sore then with in seconds touch
your genitals in order for you to have any chance of getting herpes
on your genitals. Or they would have to give you oral sex while
they had a visible cold sore.
By the way... cold sores are rarely caused by genital herpes
(HSV2), they are caused by the oral herpes virus (HSV1).