If i have a cold sore, does that mean i'm going to get it in the eye and inside my mouth?

Not necessarily : To avoid spreading the virus that causes cold sores, be careful to avoid touching the area around the sore and practice good hand washing. If the cold sore is new, your healthcare provider may prescribe topical or oral antiviral medications, which can help the sore heal more quickly and limit the amount of virus present.

No, this is unlikely: cold sores are caused by a virus called Herpes simplex type 1. The virus lives in the nerves around your mouth and may come out when you are stressed, or have a cold or exposed to sun. They generally break out in the same area, so it is unlikely to occur in the eye. It is also unlikely to occur inside the mouth if it has always occurred around the mouth on the outside.