Is it possible for herpes to spread all over a person's body?!

Is it possible for herpes to spread all over a person's body?

I think I have been getting cold sores around my mouth... and now I have a weird looking rash ALL over my body!! I have heard that herpes only form on the mouth or the privates but I've also heard that it can spread anywhere. Which is true??? Also, any tips on how to control it??? HELP!! I'm hoping it's just an allergic skin reaction but I could be wrong =(

Herpes are usually sores in the mouth, on the tongue, genitals, or arund the mouth, if you're worried go have the rash checked by a doctor...
As for control doctors usually prescirbe something once they've determined if you have herpes or not, but atleast you will know if you have it or not by going.